Common use of Form of Class A Clause in Contracts

Form of Class A. 1 Note [For Book-Entry Notes: UNLESS THIS NOTE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION (“DTC”), TO THE ISSUER OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY NOTE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.] [For Retained Notes: THIS NOTE HAS NOT BEEN AND WILL NOT BE REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “1933 ACT”), OR UNDER THE SECURITIES OR BLUE SKY LAWS OF ANY STATE IN THE UNITED STATES OR ANY FOREIGN SECURITIES LAWS. NO SALE, PLEDGE OR OTHER TRANSFER OF THIS NOTE MAY BE MADE BY ANY PERSON UNLESS EITHER (i) SUCH SALE, PLEDGE OR OTHER TRANSFER IS MADE TO THE DEPOSITOR, (ii) SUCH SALE, PLEDGE OR OTHER TRANSFER IS MADE TO AN ACCREDITED INVESTOR THAT EXECUTES A NOTE, SUBSTANTIALLY IN THE FORM SPECIFIED IN THE INDENTURE, TO THE EFFECT THAT IT IS AN ACCREDITED INVESTOR ACTING FOR ITS OWN ACCOUNT (AND NOT FOR THE ACCOUNT OF OTHERS) OR AS A FIDUCIARY OR AGENT FOR OTHERS (WHICH OTHERS ALSO ARE ACCREDITED INVESTORS UNLESS THE HOLDER IS A BANK ACTING IN ITS FIDUCIARY CAPACITY), (iii) SO LONG AS THIS NOTE IS ELIGIBLE FOR RESALE PURSUANT TO RULE 144A UNDER THE 1933 ACT, SUCH SALE, PLEDGE OR OTHER TRANSFER IS MADE TO A PERSON WHO THE PROSPECTIVE TRANSFEROR REASONABLY BELIEVES AFTER DUE INQUIRY IS A QUALIFIED INSTITUTIONAL BUYER, ACTING FOR ITS OWN ACCOUNT (AND NOT FOR THE ACCOUNT OF OTHERS) OR AS A FIDUCIARY OR AGENT FOR OTHERS (WHICH OTHERS ALSO ARE QUALIFIED INSTITUTIONAL BUYERS) TO WHOM NOTICE IS GIVEN THAT THE SALE, PLEDGE OR TRANSFER IS BEING MADE IN RELIANCE ON RULE 144A, OR (iv) SUCH SALE, PLEDGE OR OTHER TRANSFER IS OTHERWISE MADE IN A TRANSACTION EXEMPT FROM THE REGISTRATION REQUIREMENTS OF THE 1933 ACT, IN WHICH CASE THE INDENTURE TRUSTEE SHALL REQUIRE THAT BOTH THE PROSPECTIVE TRANSFEROR AND THE PROSPECTIVE TRANSFEREE CERTIFY TO THE ISSUING ENTITY, THE INDENTURE TRUSTEE AND THE DEPOSITOR IN WRITING THE FACTS SURROUNDING SUCH TRANSFER, WHICH CERTIFICATION SHALL BE IN FORM AND SUBSTANCE SATISFACTORY TO THE INDENTURE TRUSTEE AND THE DEPOSITOR. EXCEPT IN THE CASE OF A TRANSFER DESCRIBED IN CLAUSES (i) OR (iii) ABOVE, THE INDENTURE TRUSTEE SHALL REQUIRE A WRITTEN OPINION OF COUNSEL (WHICH SHALL NOT BE AT THE EXPENSE OF THE ISSUING ENTITY, THE OWNER TRUSTEE, THE INDENTURE TRUSTEE, THE DEPOSITOR OR CARMAX BUSINESS SERVICES, LLC) SATISFACTORY TO THE DEPOSITOR AND THE INDENTURE TRUSTEE TO THE EFFECT THAT SUCH TRANSFER WILL NOT VIOLATE THE 1933 ACT.] [For Retained Notes: UNLESS COUNSEL SATISFACTORY TO THE INDENTURE TRUSTEE SHALL HAVE RENDERED AN OPINION TO THE EFFECT THAT THIS NOTE TO BE SOLD, PLEDGED, OR TRANSFERRED WILL BE CHARACTERIZED AS INDEBTEDNESS FOR UNITED STATES FEDERAL INCOME TAX PURPOSES, A SALE, PLEDGE, OR TRANSFER OF THIS NOTE MAY ONLY BE MADE (1) TO ANY PERSON WHO IS A UNITED STATES PERSON (WITHIN THE MEANING OF SECTION 7701(a)(30) OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE “CODE”)); AND (2) NO SALE, PLEDGE, OR TRANSFER OF THIS NOTE SHALL BE MADE (I) TO ANY ONE PERSON IN AN AMOUNT LESS THAN $2,000,000 (OR SUCH OTHER AMOUNT AS THE DEPOSITOR MAY DETERMINE IN ORDER TO PREVENT THE ISSUING ENTITY FROM BEING TREATED AS A “PUBLICLY TRADED PARTNERSHIP” UNDER SECTION 7704 OF THE CODE) OR (II) TO A GRANTOR TRUST, S CORPORATION, OR PARTNERSHIP WHERE MORE THAN 50% OF THE VALUE OF A BENEFICIAL OWNER’S INTEREST IN SUCH PASS-THROUGH ENTITY IS ATTRIBUTABLE TO THE PASS-THROUGH ENTITY’S INTEREST IN THIS NOTE, IN EACH CASE, UNLESS (A) AN OPINION OF COUNSEL SATISFACTORY TO THE INDENTURE TRUSTEE AND THE DEPOSITOR THAT SUCH SALE, PLEDGE, OR TRANSFER SHALL NOT CAUSE THE ISSUING ENTITY TO BE TREATED AS AN ASSOCIATION (OR PUBLICLY TRADED PARTNERSHIP) TAXABLE AS A CORPORATION FOR FEDERAL INCOME TAX PURPOSES SHALL HAVE BEEN DELIVERED TO THE INDENTURE TRUSTEE AND THE DEPOSITOR AND (B) THE DEPOSITOR SHALL HAVE PROVIDED PRIOR WRITTEN APPROVAL; PROVIDED, HOWEVER, THAT THE RESTRICTIONS IN THIS PARAGRAPH SHALL NOT CONTINUE TO APPLY TO THIS NOTE (COVERED BY THE OPINION DESCRIBED IN THIS PARAGRAPH) IN THE EVENT COUNSEL SATISFACTORY TO THE INDENTURE TRUSTEE AND THE DEPOSITOR HAS RENDERED AN OPINION, WITH RESPECT TO THE SALE, PLEDGE OR TRANSFER BY THE DEPOSITOR OR AN AFFILIATE THEREOF, TO THE EFFECT THAT THIS NOTE TO BE SOLD, PLEDGED, OR TRANSFERRED WILL BE CHARACTERIZED AS INDEBTEDNESS FOR FEDERAL INCOME TAX PURPOSES. ANY ATTEMPTED SALE, PLEDGE OR OTHER TRANSFER IN CONTRAVENTION OF THIS PARAGRAPH WILL BE VOID AB INITIO AND THE PURPORTED TRANSFEROR WILL CONTINUE TO BE TREATED AS THE OWNER OF THIS NOTE.] BY ACQUIRING THIS NOTE (OR INTEREST HEREIN), EACH PURCHASER, TRANSFEREE AND OWNER OF A BENEFICIAL INTEREST IN SUCH NOTE WILL BE DEEMED TO REPRESENT, WARRANT AND COVENANT THAT EITHER (A) IT IS NOT ACQUIRING SUCH NOTE (OR INTEREST THEREIN) WITH THE PLAN ASSETS OF (1) AN “EMPLOYEE BENEFIT PLAN” (AS DEFINED IN SECTION 3(3) OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED (“ERISA”)) SUBJECT TO TITLE I OF ERISA, (2) A “PLAN” DESCRIBED IN SECTION 4975(e)(1) OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE “CODE”), THAT IS SUBJECT TO SECTION 4975 OF THE CODE, (3) ANY ENTITY OR ACCOUNT WHOSE UNDERLYING ASSETS INCLUDE “PLAN ASSETS” WITHIN THE MEANING OF 29 C.F.R. SECTION 2510.3-101, AS MODIFIED BY SECTION 3(42) OF ERISA BY REASON OF A PLAN’S INVESTMENT IN THE ENTITY OR ACCOUNT OR (4) AN EMPLOYEE BENEFIT PLAN OR ARRANGEMENT NOT SUBJECT TO TITLE I OF ERISA OR SECTION 4975 OF THE CODE OR (B) THE ACQUISITION, HOLDING AND DISPOSITION OF SUCH NOTE (OR INTEREST THEREIN) WILL NOT GIVE RISE TO A NON-EXEMPT “PROHIBITED TRANSACTION” UNDER SECTION 406 OF ERISA OR SECTION 4975 OF THE CODE OR A VIOLATION OF ANY FEDERAL, STATE, LOCAL OR OTHER LAW THAT IS SUBSTANTIALLY SIMILAR TO TITLE I OF ERISA OR SECTION 4975 OF THE CODE. THE PRINCIPAL OF THIS NOTE IS PAYABLE AS SET FORTH IN THE INDENTURE (AS DEFINED BELOW). THE OUTSTANDING PRINCIPAL BALANCE OF THIS NOTE AT ANY TIME MAY BE LESS THAN THE AMOUNT SHOWN ON THE FACE HEREOF. REGISTERED [add for Notes other than Retained Notes: Up to] $[ ] NO. R-[__] CUSIP NO. 14290D AA9 4.733% CLASS A-1 ASSET-BACKED NOTE CarMax Auto Owner Trust 2024-4, a statutory trust organized and existing under the laws of the State of Delaware (herein referred to as the “Issuer”), for value received, hereby promises to pay to [ ], or its registered assigns, the principal sum of [ ] DOLLARS OR SUCH LESSER AMOUNT AS IS SET FORTH IN SCHEDULE I or such lesser amount payable on each Distribution Date in an amount equal to the aggregate amount, if any, payable from the Note Payment Account in respect of principal on the Class A-1 Notes pursuant to Section 2.8 of the Indenture dated as of November 1, 2024 (as amended, supplemented or otherwise modified and in effect from time to time, the “Indenture”) between the Issuer and U.S. Bank Trust Company, National Association, a national banking association, as Indenture Trustee (in such capacity, the “Indenture Trustee”); provided, however, that, if not paid prior to such date, the unpaid principal amount of this Class A-1 Note shall be due and payable on the earlier of the September 2025 Distribution Date (the “Class A-1 Final Distribution Date”) and the Redemption Date, if any, pursuant to Section 10.1 of the Indenture. Capitalized terms used but not defined herein are defined in Article I of the Indenture, which also contains rules as to construction that shall be applicable hereto. The Issuer shall pay interest on this Class A-1 Note at the rate per annum shown above on each Distribution Date, until the principal of this Class A-1 Note is paid or made available for payment, on the principal amount of this Class A-1 Note outstanding on the preceding Distribution Date (after giving effect to all payments of principal made on such preceding Distribution Date), subject to certain limitations contained in Section 3.1 of the Indenture. Interest on this Class A-1 Note shall accrue for each Distribution Date from and including the preceding Distribution Date (or, in the case of the initial Distribution Date or if no interest has been paid, from and including the Closing Date) to but excluding such Distribution Date. Interest shall be computed on the basis of actual days elapsed and a 360-day year. Interest on this Class A-1 Note on each Distribution Date shall equal the product of (i) the rate per annum shown above, (ii) the principal amount of this Class A-1 Note outstanding on the preceding Distribution Date (after giving effect to all payments of principal made on such preceding Distribution Date) or, with respect to the initial Distribution Date, on the Closing Date, and (iii) the actual number of days in the applicable interest period divided by 360. The principal of and interest on this Class A-1 Note shall be paid in the manner specified on the reverse hereof.

Form of Class A. 1 Note [For Book-Entry Notes: UNLESS THIS NOTE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION (“DTC”), TO THE ISSUER OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY NOTE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.] [For Retained Notes: THIS NOTE HAS NOT BEEN AND WILL NOT BE REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “1933 ACT”), OR UNDER THE SECURITIES OR BLUE SKY LAWS OF ANY STATE IN THE UNITED STATES OR ANY FOREIGN SECURITIES LAWS. NO SALE, PLEDGE OR OTHER TRANSFER OF THIS NOTE MAY BE MADE BY ANY PERSON UNLESS EITHER (i) SUCH SALE, PLEDGE OR OTHER TRANSFER IS MADE TO THE DEPOSITOR, (ii) SUCH SALE, PLEDGE OR OTHER TRANSFER IS MADE TO AN ACCREDITED INVESTOR THAT EXECUTES A NOTE, SUBSTANTIALLY IN THE FORM SPECIFIED IN THE INDENTURE, TO THE EFFECT THAT IT IS AN ACCREDITED INVESTOR ACTING FOR ITS OWN ACCOUNT (AND NOT FOR THE ACCOUNT OF OTHERS) OR AS A FIDUCIARY OR AGENT FOR OTHERS (WHICH OTHERS ALSO ARE ACCREDITED INVESTORS UNLESS THE HOLDER IS A BANK ACTING IN ITS FIDUCIARY CAPACITY), (iii) SO LONG AS THIS NOTE IS ELIGIBLE FOR RESALE PURSUANT TO RULE 144A UNDER THE 1933 ACT, SUCH SALE, PLEDGE OR OTHER TRANSFER IS MADE TO A PERSON WHO THE PROSPECTIVE TRANSFEROR REASONABLY BELIEVES AFTER DUE INQUIRY IS A QUALIFIED INSTITUTIONAL BUYER, ACTING FOR ITS OWN ACCOUNT (AND NOT FOR THE ACCOUNT OF OTHERS) OR AS A FIDUCIARY OR AGENT FOR OTHERS (WHICH OTHERS ALSO ARE QUALIFIED INSTITUTIONAL BUYERS) TO WHOM NOTICE IS GIVEN THAT THE SALE, PLEDGE OR TRANSFER IS BEING MADE IN RELIANCE ON RULE 144A, OR (iv) SUCH SALE, PLEDGE OR OTHER TRANSFER IS OTHERWISE MADE IN A TRANSACTION EXEMPT FROM THE REGISTRATION REQUIREMENTS OF THE 1933 ACT, IN WHICH CASE THE INDENTURE TRUSTEE SHALL REQUIRE THAT BOTH THE PROSPECTIVE TRANSFEROR AND THE PROSPECTIVE TRANSFEREE CERTIFY TO THE ISSUING ENTITY, THE INDENTURE TRUSTEE AND THE DEPOSITOR IN WRITING THE FACTS SURROUNDING SUCH TRANSFER, WHICH CERTIFICATION SHALL BE IN FORM AND SUBSTANCE SATISFACTORY TO THE INDENTURE TRUSTEE AND THE DEPOSITOR. EXCEPT IN THE CASE OF A TRANSFER DESCRIBED IN CLAUSES (i) OR (iii) ABOVE, THE INDENTURE TRUSTEE SHALL REQUIRE A WRITTEN OPINION OF COUNSEL (WHICH SHALL NOT BE AT THE EXPENSE OF THE ISSUING ENTITY, THE OWNER TRUSTEE, THE INDENTURE TRUSTEE, THE DEPOSITOR OR CARMAX BUSINESS SERVICES, LLC) SATISFACTORY TO THE DEPOSITOR AND THE INDENTURE TRUSTEE TO THE EFFECT THAT SUCH TRANSFER WILL NOT VIOLATE THE 1933 ACT.] [For Retained Notes: UNLESS COUNSEL SATISFACTORY TO THE INDENTURE TRUSTEE SHALL HAVE RENDERED AN OPINION TO THE EFFECT THAT THIS NOTE TO BE SOLD, PLEDGED, OR TRANSFERRED WILL BE CHARACTERIZED AS INDEBTEDNESS FOR UNITED STATES FEDERAL INCOME TAX PURPOSES, A SALE, PLEDGE, OR TRANSFER OF THIS NOTE MAY ONLY BE MADE (1) TO ANY PERSON WHO IS A UNITED STATES PERSON (WITHIN THE MEANING OF SECTION 7701(a)(30) OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE “CODE”)); AND (2) NO SALE, PLEDGE, OR TRANSFER OF THIS NOTE SHALL BE MADE (I) TO ANY ONE PERSON IN AN AMOUNT LESS THAN $2,000,000 (OR SUCH OTHER AMOUNT AS THE DEPOSITOR MAY DETERMINE IN ORDER TO PREVENT THE ISSUING ENTITY FROM BEING TREATED AS A “PUBLICLY TRADED PARTNERSHIP” UNDER SECTION 7704 OF THE CODE) OR (II) TO A GRANTOR TRUST, S CORPORATION, OR PARTNERSHIP WHERE MORE THAN 50% OF THE VALUE OF A BENEFICIAL OWNER’S INTEREST IN SUCH PASS-THROUGH ENTITY IS ATTRIBUTABLE TO THE PASS-THROUGH ENTITY’S INTEREST IN THIS NOTE, IN EACH CASE, UNLESS (A) AN OPINION OF COUNSEL SATISFACTORY TO THE INDENTURE TRUSTEE AND THE DEPOSITOR THAT SUCH SALE, PLEDGE, OR TRANSFER SHALL NOT CAUSE THE ISSUING ENTITY TO BE TREATED AS AN ASSOCIATION (OR PUBLICLY TRADED PARTNERSHIP) TAXABLE AS A CORPORATION FOR FEDERAL INCOME TAX PURPOSES SHALL HAVE BEEN DELIVERED TO THE INDENTURE TRUSTEE AND THE DEPOSITOR AND (B) THE DEPOSITOR SHALL HAVE PROVIDED PRIOR WRITTEN APPROVAL; PROVIDED, HOWEVER, THAT THE RESTRICTIONS IN THIS PARAGRAPH SHALL NOT CONTINUE TO APPLY TO THIS NOTE (COVERED BY THE OPINION DESCRIBED IN THIS PARAGRAPH) IN THE EVENT COUNSEL SATISFACTORY TO THE INDENTURE TRUSTEE AND THE DEPOSITOR HAS RENDERED AN OPINION, WITH RESPECT TO THE SALE, PLEDGE OR TRANSFER BY THE DEPOSITOR OR AN AFFILIATE THEREOF, TO THE EFFECT THAT THIS NOTE TO BE SOLD, PLEDGED, OR TRANSFERRED WILL BE CHARACTERIZED AS INDEBTEDNESS FOR FEDERAL INCOME TAX PURPOSES. ANY ATTEMPTED SALE, PLEDGE OR OTHER TRANSFER IN CONTRAVENTION OF THIS PARAGRAPH WILL BE VOID AB INITIO AND THE PURPORTED TRANSFEROR WILL CONTINUE TO BE TREATED AS THE OWNER OF THIS NOTE.] BY ACQUIRING THIS NOTE (OR INTEREST HEREIN), EACH PURCHASER, TRANSFEREE AND OWNER OF A BENEFICIAL INTEREST IN SUCH NOTE WILL BE DEEMED TO REPRESENT, WARRANT AND COVENANT THAT EITHER (A) IT IS NOT ACQUIRING SUCH NOTE (OR INTEREST THEREIN) WITH THE PLAN ASSETS OF (1) AN “EMPLOYEE BENEFIT PLAN” (AS DEFINED IN SECTION 3(3) OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED (“ERISA”)) SUBJECT TO TITLE I OF ERISA, (2) A “PLAN” DESCRIBED IN SECTION 4975(e)(1) OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE “CODE”), THAT IS SUBJECT TO SECTION 4975 OF THE CODE, (3) ANY ENTITY OR ACCOUNT WHOSE UNDERLYING ASSETS INCLUDE “PLAN ASSETS” WITHIN THE MEANING OF 29 C.F.R. SECTION 2510.3-101, AS MODIFIED BY SECTION 3(42) OF ERISA BY REASON OF A PLAN’S INVESTMENT IN THE ENTITY OR ACCOUNT OR (4) AN EMPLOYEE BENEFIT PLAN OR ARRANGEMENT NOT SUBJECT TO TITLE I OF ERISA OR SECTION 4975 OF THE CODE OR (B) THE ACQUISITION, HOLDING AND DISPOSITION OF SUCH NOTE (OR INTEREST THEREIN) WILL NOT GIVE RISE TO A NON-EXEMPT “PROHIBITED TRANSACTION” UNDER SECTION 406 OF ERISA OR SECTION 4975 OF THE CODE OR A VIOLATION OF ANY FEDERAL, STATE, LOCAL OR OTHER LAW THAT IS SUBSTANTIALLY SIMILAR TO TITLE I OF ERISA OR SECTION 4975 OF THE CODE. THE PRINCIPAL OF THIS NOTE IS PAYABLE AS SET FORTH IN THE INDENTURE (AS DEFINED BELOW). THE OUTSTANDING PRINCIPAL BALANCE OF THIS NOTE AT ANY TIME MAY BE LESS THAN THE AMOUNT SHOWN ON THE FACE HEREOF. REGISTERED [add Add for Notes other than Retained Notes: Up to] $[ [________] NO. R-[__] CUSIP NO. 14290D AA9 4.733[________] [___]% CLASS A-1 ASSET-BACKED NOTE CarMax [Auto Owner Owner][Select Receivables] Trust 2024-420[__]-[__], a statutory trust organized and existing under the laws of the State of Delaware (herein referred to as the “Issuer”), for value received, hereby promises to pay to [ ]Cede & Co., or its registered assigns, the principal sum of [ ] DOLLARS OR SUCH LESSER AMOUNT AS IS SET FORTH IN ON SCHEDULE I or such lesser amount payable on each Distribution Date in an amount equal to the aggregate amount, if any, payable from the Note Payment Account in respect of principal on the Class A-1 Notes pursuant to Section 2.8 of the Indenture dated as of November 1[________], 2024 20[__] (as amended, supplemented or otherwise modified and in effect from time to time, the “Indenture”) between the Issuer and U.S. Bank Trust Company, National Association[___________________], a national banking association[___________________], as Indenture Trustee (in such capacity, the “Indenture Trustee”); provided, however, that, if not paid prior to such date, the unpaid principal amount of this Class A-1 Note shall be due and payable on the earlier of the September 2025 [________], 20[__] Distribution Date (the “Class A-1 Final Distribution Date”) and the Redemption Date, if any, pursuant to Section 10.1 of the Indenture. Capitalized terms used but not defined herein are defined in Article I of the Indenture, which also contains rules as to construction that shall be applicable hereto. The Issuer shall pay interest on this Class A-1 Note at the rate per annum shown above on each Distribution Date, until the principal of this Class A-1 Note is paid or made available for payment, on the principal amount of this Class A-1 Note outstanding on the preceding Distribution Date (after giving effect to all payments of principal made on such preceding Distribution Date), subject to certain limitations contained in Section 3.1 of the Indenture. Interest on this Class A-1 Note shall accrue for each Distribution Date from and including the preceding Distribution Date (or, in the case of the initial Distribution Date or if no interest has been paid, from and including the Closing Date) to but excluding such Distribution Date. Interest shall be computed on the basis of actual days elapsed and a 360-day year. Interest on this Class A-1 Note on each Distribution Date shall equal the product of (i) the rate per annum shown above, (ii) the principal amount of this Class A-1 Note outstanding on the preceding Distribution Date (after giving effect to all payments of principal made on such preceding Distribution Date) or, with respect to the initial Distribution Date, on the Closing Date, and (iii) the actual number of days in the applicable interest period divided by 360. The principal of and interest on this Class A-1 Note shall be paid in the manner specified on the reverse hereof.

Form of Class A. 1 Note [For Book-Entry Notes: UNLESS THIS NOTE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION (“DTC”), TO THE ISSUER OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY NOTE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.] [For Retained Notes: THIS NOTE HAS NOT BEEN AND WILL NOT BE REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “1933 ACT”), OR UNDER THE SECURITIES OR BLUE SKY LAWS OF ANY STATE IN THE UNITED STATES OR ANY FOREIGN SECURITIES LAWS. NO SALE, PLEDGE OR OTHER TRANSFER OF THIS NOTE MAY BE MADE BY ANY PERSON UNLESS EITHER (i) SUCH SALE, PLEDGE OR OTHER TRANSFER IS MADE TO THE DEPOSITOR, (ii) SUCH SALE, PLEDGE OR OTHER TRANSFER IS MADE TO AN ACCREDITED INVESTOR THAT EXECUTES A NOTE, SUBSTANTIALLY IN THE FORM SPECIFIED IN THE INDENTURE, TO THE EFFECT THAT IT IS AN ACCREDITED INVESTOR ACTING FOR ITS OWN ACCOUNT (AND NOT FOR THE ACCOUNT OF OTHERS) OR AS A FIDUCIARY OR AGENT FOR OTHERS (WHICH OTHERS ALSO ARE ACCREDITED INVESTORS UNLESS THE HOLDER IS A BANK ACTING IN ITS FIDUCIARY CAPACITY), (iii) SO LONG AS THIS NOTE IS ELIGIBLE FOR RESALE PURSUANT TO RULE 144A UNDER THE 1933 ACT, SUCH SALE, PLEDGE OR OTHER TRANSFER IS MADE TO A PERSON WHO THE PROSPECTIVE TRANSFEROR REASONABLY BELIEVES AFTER DUE INQUIRY IS A QUALIFIED INSTITUTIONAL BUYER, ACTING FOR ITS OWN ACCOUNT (AND NOT FOR THE ACCOUNT OF OTHERS) OR AS A FIDUCIARY OR AGENT FOR OTHERS (WHICH OTHERS ALSO ARE QUALIFIED INSTITUTIONAL BUYERS) TO WHOM NOTICE IS GIVEN THAT THE SALE, PLEDGE OR TRANSFER IS BEING MADE IN RELIANCE ON RULE 144A, OR (iv) SUCH SALE, PLEDGE OR OTHER TRANSFER IS OTHERWISE MADE IN A TRANSACTION EXEMPT FROM THE REGISTRATION REQUIREMENTS OF THE 1933 ACT, IN WHICH CASE THE INDENTURE TRUSTEE SHALL REQUIRE THAT BOTH THE PROSPECTIVE TRANSFEROR AND THE PROSPECTIVE TRANSFEREE CERTIFY TO THE ISSUING ENTITY, THE INDENTURE TRUSTEE AND THE DEPOSITOR IN WRITING THE FACTS SURROUNDING SUCH TRANSFER, WHICH CERTIFICATION SHALL BE IN FORM AND SUBSTANCE SATISFACTORY TO THE INDENTURE TRUSTEE AND THE DEPOSITOR. EXCEPT IN THE CASE OF A TRANSFER DESCRIBED IN CLAUSES (i) OR (iii) ABOVE, THE INDENTURE TRUSTEE SHALL REQUIRE A WRITTEN OPINION OF COUNSEL (WHICH SHALL NOT BE AT THE EXPENSE OF THE ISSUING ENTITY, THE OWNER TRUSTEE, THE INDENTURE TRUSTEE, THE DEPOSITOR OR CARMAX BUSINESS SERVICES, LLC) SATISFACTORY TO THE DEPOSITOR AND THE INDENTURE TRUSTEE TO THE EFFECT THAT SUCH TRANSFER WILL NOT VIOLATE THE 1933 ACT.] [For Retained Notes: UNLESS COUNSEL SATISFACTORY TO THE INDENTURE TRUSTEE SHALL HAVE RENDERED AN OPINION TO THE EFFECT THAT THIS NOTE TO BE SOLD, PLEDGED, OR TRANSFERRED WILL BE CHARACTERIZED AS INDEBTEDNESS FOR UNITED STATES FEDERAL INCOME TAX PURPOSES, A SALE, PLEDGE, OR TRANSFER OF THIS NOTE MAY ONLY BE MADE (1) TO ANY PERSON WHO IS A UNITED STATES PERSON (WITHIN THE MEANING OF SECTION 7701(a)(30) OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE “CODE”)); AND (2) NO SALE, PLEDGE, OR TRANSFER OF THIS NOTE SHALL BE MADE (I) TO ANY ONE PERSON IN AN AMOUNT LESS THAN $2,000,000 (OR SUCH OTHER AMOUNT AS THE DEPOSITOR MAY DETERMINE IN ORDER TO PREVENT THE ISSUING ENTITY FROM BEING TREATED AS A “PUBLICLY TRADED PARTNERSHIP” UNDER SECTION 7704 OF THE CODE) OR (II) TO A GRANTOR TRUST, S CORPORATION, OR PARTNERSHIP WHERE MORE THAN 50% OF THE VALUE OF A BENEFICIAL OWNER’S INTEREST IN SUCH PASS-THROUGH ENTITY IS ATTRIBUTABLE TO THE PASS-THROUGH ENTITY’S INTEREST IN THIS NOTE, IN EACH CASE, UNLESS (A) AN OPINION OF COUNSEL SATISFACTORY TO THE INDENTURE TRUSTEE AND THE DEPOSITOR THAT SUCH SALE, PLEDGE, OR TRANSFER SHALL NOT CAUSE THE ISSUING ENTITY TO BE TREATED AS AN ASSOCIATION (OR PUBLICLY TRADED PARTNERSHIP) TAXABLE AS A CORPORATION FOR FEDERAL INCOME TAX PURPOSES SHALL HAVE BEEN DELIVERED TO THE INDENTURE TRUSTEE AND THE DEPOSITOR AND (B) THE DEPOSITOR SHALL HAVE PROVIDED PRIOR WRITTEN APPROVAL; PROVIDED, HOWEVER, THAT THE RESTRICTIONS IN THIS PARAGRAPH SHALL NOT CONTINUE TO APPLY TO THIS NOTE (COVERED BY THE OPINION DESCRIBED IN THIS PARAGRAPH) IN THE EVENT COUNSEL SATISFACTORY TO THE INDENTURE TRUSTEE AND THE DEPOSITOR HAS RENDERED AN OPINION, WITH RESPECT TO THE SALE, PLEDGE OR TRANSFER BY THE DEPOSITOR OR AN AFFILIATE THEREOF, TO THE EFFECT THAT THIS NOTE TO BE SOLD, PLEDGED, OR TRANSFERRED WILL BE CHARACTERIZED AS INDEBTEDNESS FOR FEDERAL INCOME TAX PURPOSES. ANY ATTEMPTED SALE, PLEDGE OR OTHER TRANSFER IN CONTRAVENTION OF THIS PARAGRAPH WILL BE VOID AB INITIO AND THE PURPORTED TRANSFEROR WILL CONTINUE TO BE TREATED AS THE OWNER OF THIS NOTE.] BY ACQUIRING THIS NOTE (OR INTEREST HEREIN), EACH PURCHASER, TRANSFEREE AND OWNER OF A BENEFICIAL INTEREST IN SUCH NOTE WILL BE DEEMED TO REPRESENT, WARRANT AND COVENANT THAT EITHER (A) IT IS NOT ACQUIRING SUCH NOTE (OR INTEREST THEREIN) WITH THE PLAN ASSETS OF EITHER (1) AN “EMPLOYEE BENEFIT PLAN” (AS DEFINED IN SECTION 3(3) OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED (“ERISA”)) SUBJECT TO TITLE I OF ERISA, (2) A “PLAN” DESCRIBED IN SECTION 4975(e)(1) OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE “CODE”), THAT IS SUBJECT TO SECTION 4975 OF THE CODE, (3) ANY ENTITY OR ACCOUNT WHOSE UNDERLYING ASSETS INCLUDE “PLAN ASSETS” WITHIN THE MEANING OF 29 C.F.R. SECTION 2510.3-101, AS MODIFIED BY SECTION 3(42) OF ERISA BY REASON OF A PLAN’S INVESTMENT IN THE ENTITY OR ACCOUNT OR (4) AN EMPLOYEE BENEFIT PLAN OR ARRANGEMENT NOT SUBJECT TO TITLE I OF ERISA OR SECTION 4975 OF THE CODE OR (B) THE ACQUISITION, ACQUISITION AND HOLDING AND DISPOSITION OF SUCH NOTE (OR INTEREST THEREIN) WILL NOT GIVE RISE TO A NON-EXEMPT “PROHIBITED TRANSACTION” UNDER SECTION 406 OF ERISA OR SECTION 4975 OF THE CODE OR A VIOLATION OF ANY FEDERAL, STATE, LOCAL OR OTHER LAW THAT IS SUBSTANTIALLY SIMILAR TO TITLE I OF ERISA OR SECTION 4975 OF THE CODE. THE PRINCIPAL OF THIS NOTE IS PAYABLE AS SET FORTH IN THE INDENTURE (AS DEFINED BELOW). THE OUTSTANDING PRINCIPAL BALANCE OF THIS NOTE AT ANY TIME MAY BE LESS THAN THE AMOUNT SHOWN ON THE FACE HEREOF. REGISTERED [add for Notes other than Retained Notes: Up to] $[ ] NO. R-[__[ ] CUSIP NO. 14290D AA9 4.73314318X AA3 5.729% CLASS A-1 ASSET-BACKED NOTE CarMax Auto Owner Trust 20242023-4, a statutory trust organized and existing under the laws of the State of Delaware (herein referred to as the “Issuer”), for value received, hereby promises to pay to [ ], or its registered assigns, the principal sum of [ ] DOLLARS OR SUCH LESSER AMOUNT AS IS SET FORTH IN SCHEDULE I or such lesser amount payable on each Distribution Date in an amount equal to the aggregate amount, if any, payable from the Note Payment Account in respect of principal on the Class A-1 Notes pursuant to Section 2.8 of the Indenture dated as of November October 1, 2024 2023 (as amended, supplemented or otherwise modified and in effect from time to time, the “Indenture”) between the Issuer and U.S. Bank Trust Company, National Association, a national banking association, as Indenture Trustee (in such capacity, the “Indenture Trustee”); provided, however, that, if not paid prior to such date, the unpaid principal amount of this Class A-1 Note shall be due and payable on the earlier of the September 2025 October 2024 Distribution Date (the “Class A-1 Final Distribution Date”) and the Redemption Date, if any, pursuant to Section 10.1 of the Indenture. Capitalized terms used but not defined herein are defined in Article I of the Indenture, which also contains rules as to construction that shall be applicable hereto. The Issuer shall pay interest on this Class A-1 Note at the rate per annum shown above on each Distribution Date, until the principal of this Class A-1 Note is paid or made available for payment, on the principal amount of this Class A-1 Note outstanding on the preceding Distribution Date (after giving effect to all payments of principal made on such preceding Distribution Date), subject to certain limitations contained in Section 3.1 of the Indenture. Interest on this Class A-1 Note shall accrue for each Distribution Date from and including the preceding Distribution Date (or, in the case of the initial Distribution Date or if no interest has been paid, from and including the Closing Date) to but excluding such Distribution Date. Interest shall be computed on the basis of actual days elapsed and a 360-day year. Interest on this Class A-1 Note on each Distribution Date shall equal the product of (i) the rate per annum shown above, (ii) the principal amount of this Class A-1 Note outstanding on the preceding Distribution Date (after giving effect to all payments of principal made on such preceding Distribution Date) or, with respect to the initial Distribution Date, on the Closing Date, and (iii) the actual number of days in the applicable interest period divided by 360. The principal of and interest on this Class A-1 Note shall be paid in the manner specified on the reverse hereof.

Form of Class A. 1 Note [For Book-Entry Notes: UNLESS THIS NOTE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION (“DTC”), TO THE ISSUER OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY NOTE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.] [For Retained Notes: THIS NOTE HAS NOT BEEN AND WILL NOT BE REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “1933 ACT”), OR UNDER THE SECURITIES OR BLUE SKY LAWS OF ANY STATE IN THE UNITED STATES OR ANY FOREIGN SECURITIES LAWS. NO SALE, PLEDGE OR OTHER TRANSFER OF THIS NOTE MAY BE MADE BY ANY PERSON UNLESS EITHER (i) SUCH SALE, PLEDGE OR OTHER TRANSFER IS MADE TO THE DEPOSITOR, (ii) SUCH SALE, PLEDGE OR OTHER TRANSFER IS MADE TO AN ACCREDITED INVESTOR THAT EXECUTES A NOTE, SUBSTANTIALLY IN THE FORM SPECIFIED IN THE INDENTURE, TO THE EFFECT THAT IT IS AN ACCREDITED INVESTOR ACTING FOR ITS OWN ACCOUNT (AND NOT FOR THE ACCOUNT OF OTHERS) OR AS A FIDUCIARY OR AGENT FOR OTHERS (WHICH OTHERS ALSO ARE ACCREDITED INVESTORS UNLESS THE HOLDER IS A BANK ACTING IN ITS FIDUCIARY CAPACITY), (iii) SO LONG AS THIS NOTE IS ELIGIBLE FOR RESALE PURSUANT TO RULE 144A UNDER THE 1933 ACT, SUCH SALE, PLEDGE OR OTHER TRANSFER IS MADE TO A PERSON WHO THE PROSPECTIVE TRANSFEROR REASONABLY BELIEVES AFTER DUE INQUIRY IS A QUALIFIED INSTITUTIONAL BUYER, ACTING FOR ITS OWN ACCOUNT (AND NOT FOR THE ACCOUNT OF OTHERS) OR AS A FIDUCIARY OR AGENT FOR OTHERS (WHICH OTHERS ALSO ARE QUALIFIED INSTITUTIONAL BUYERS) TO WHOM NOTICE IS GIVEN THAT THE SALE, PLEDGE OR TRANSFER IS BEING MADE IN RELIANCE ON RULE 144A, OR (iv) SUCH SALE, PLEDGE OR OTHER TRANSFER IS OTHERWISE MADE IN A TRANSACTION EXEMPT FROM THE REGISTRATION REQUIREMENTS OF THE 1933 ACT, IN WHICH CASE THE INDENTURE TRUSTEE SHALL REQUIRE THAT BOTH THE PROSPECTIVE TRANSFEROR AND THE PROSPECTIVE TRANSFEREE CERTIFY TO THE ISSUING ENTITY, THE INDENTURE TRUSTEE AND THE DEPOSITOR IN WRITING THE FACTS SURROUNDING SUCH TRANSFER, WHICH CERTIFICATION SHALL BE IN FORM AND SUBSTANCE SATISFACTORY TO THE INDENTURE TRUSTEE AND THE DEPOSITOR. EXCEPT IN THE CASE OF A TRANSFER DESCRIBED IN CLAUSES (i) OR (iii) ABOVE, THE INDENTURE TRUSTEE SHALL REQUIRE A WRITTEN OPINION OF COUNSEL (WHICH SHALL NOT BE AT THE EXPENSE OF THE ISSUING ENTITY, THE OWNER TRUSTEE, THE INDENTURE TRUSTEE, THE DEPOSITOR OR CARMAX BUSINESS SERVICES, LLC) SATISFACTORY TO THE DEPOSITOR AND THE INDENTURE TRUSTEE TO THE EFFECT THAT SUCH TRANSFER WILL NOT VIOLATE THE 1933 ACT.] [For Retained Notes: UNLESS COUNSEL SATISFACTORY TO THE INDENTURE TRUSTEE SHALL HAVE RENDERED AN OPINION TO THE EFFECT THAT THIS NOTE TO BE SOLD, PLEDGED, OR TRANSFERRED WILL BE CHARACTERIZED AS INDEBTEDNESS FOR UNITED STATES FEDERAL INCOME TAX PURPOSES, A SALE, PLEDGE, OR TRANSFER OF THIS NOTE MAY ONLY BE MADE (1) TO ANY PERSON WHO IS A UNITED STATES PERSON (WITHIN THE MEANING OF SECTION 7701(a)(30) OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE “CODE”)); AND (2) NO SALE, PLEDGE, OR TRANSFER OF THIS NOTE SHALL BE MADE (I) TO ANY ONE PERSON IN AN AMOUNT LESS THAN $2,000,000 (OR SUCH OTHER AMOUNT AS THE DEPOSITOR MAY DETERMINE IN ORDER TO PREVENT THE ISSUING ENTITY FROM BEING TREATED AS A “PUBLICLY TRADED PARTNERSHIP” UNDER SECTION 7704 OF THE CODE) OR (II) TO A GRANTOR TRUST, S CORPORATION, OR PARTNERSHIP WHERE MORE THAN 50% OF THE VALUE OF A BENEFICIAL OWNER’S INTEREST IN SUCH PASS-THROUGH ENTITY IS ATTRIBUTABLE TO THE PASS-THROUGH ENTITY’S INTEREST IN THIS NOTE, IN EACH CASE, UNLESS (A) AN OPINION OF COUNSEL SATISFACTORY TO THE INDENTURE TRUSTEE AND THE DEPOSITOR THAT SUCH SALE, PLEDGE, OR TRANSFER SHALL NOT CAUSE THE ISSUING ENTITY TO BE TREATED AS AN ASSOCIATION (OR PUBLICLY TRADED PARTNERSHIP) TAXABLE AS A CORPORATION FOR FEDERAL INCOME TAX PURPOSES SHALL HAVE BEEN DELIVERED TO THE INDENTURE TRUSTEE AND THE DEPOSITOR AND (B) THE DEPOSITOR SHALL HAVE PROVIDED PRIOR WRITTEN APPROVAL; PROVIDED, HOWEVER, THAT THE RESTRICTIONS IN THIS PARAGRAPH SHALL NOT CONTINUE TO APPLY TO THIS NOTE (COVERED BY THE OPINION DESCRIBED IN THIS PARAGRAPH) IN THE EVENT COUNSEL SATISFACTORY TO THE INDENTURE TRUSTEE AND THE DEPOSITOR HAS RENDERED AN OPINION, WITH RESPECT TO THE SALE, PLEDGE OR TRANSFER BY THE DEPOSITOR OR AN AFFILIATE THEREOF, TO THE EFFECT THAT THIS NOTE TO BE SOLD, PLEDGED, OR TRANSFERRED WILL BE CHARACTERIZED AS INDEBTEDNESS FOR FEDERAL INCOME TAX PURPOSES. ANY ATTEMPTED SALE, PLEDGE OR OTHER TRANSFER IN CONTRAVENTION OF THIS PARAGRAPH WILL BE VOID AB INITIO AND THE PURPORTED TRANSFEROR WILL CONTINUE TO BE TREATED AS THE OWNER OF THIS NOTE.] BY ACQUIRING THIS NOTE (OR INTEREST HEREIN), EACH PURCHASER, TRANSFEREE AND OWNER OF A BENEFICIAL INTEREST IN SUCH NOTE WILL BE DEEMED TO REPRESENT, WARRANT AND COVENANT THAT EITHER (A) IT IS NOT ACQUIRING SUCH NOTE (OR INTEREST THEREIN) WITH THE PLAN ASSETS OF EITHER (1) AN “EMPLOYEE BENEFIT PLAN” (AS DEFINED IN SECTION 3(3) OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED (“ERISA”)) SUBJECT TO TITLE I OF ERISA, (2) A “PLAN” DESCRIBED IN SECTION 4975(e)(1) OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE “CODE”), ) THAT IS SUBJECT TO SECTION 4975 OF THE CODE, (3) ANY ENTITY OR ACCOUNT WHOSE UNDERLYING ASSETS INCLUDE “PLAN ASSETS” WITHIN THE MEANING OF 29 C.F.R. SECTION 2510.3-101, AS MODIFIED BY SECTION 3(42) OF ERISA BY REASON OF A PLAN’S INVESTMENT IN THE ENTITY OR ACCOUNT OR (4) AN EMPLOYEE BENEFIT PLAN OR ARRANGEMENT NOT SUBJECT TO TITLE I OF ERISA OR SECTION 4975 OF THE CODE OR (B) THE ACQUISITION, ACQUISITION AND HOLDING AND DISPOSITION OF SUCH NOTE (OR INTEREST THEREIN) WILL NOT GIVE RISE TO A NON-EXEMPT “PROHIBITED TRANSACTION” UNDER SECTION 406 OF ERISA OR SECTION 4975 OF THE CODE OR A VIOLATION OF ANY FEDERAL, STATE, LOCAL OR OTHER LAW THAT IS SUBSTANTIALLY SIMILAR TO TITLE I OF ERISA OR SECTION 4975 OF THE CODE. THE PRINCIPAL OF THIS NOTE IS PAYABLE AS SET FORTH IN THE INDENTURE (AS DEFINED BELOW). THE OUTSTANDING PRINCIPAL BALANCE OF THIS NOTE AT ANY TIME MAY BE LESS THAN THE AMOUNT SHOWN ON THE FACE HEREOF. REGISTERED [add for Notes other than Retained Notes: Up to] $[ ] NO. R-[__] CUSIP NO. 14290D AA9 4.733000000XX0 5.508% CLASS A-1 ASSET-BACKED NOTE CarMax Auto Owner Trust 20242023-42, a statutory trust organized and existing under the laws of the State of Delaware (herein referred to as the “Issuer”), for value received, hereby promises to pay to [ ], or its registered assigns, the principal sum of [ ] DOLLARS OR SUCH LESSER AMOUNT AS IS SET FORTH IN SCHEDULE I or such lesser amount payable on each Distribution Date in an amount equal to the aggregate amount, if any, payable from the Note Payment Account in respect of principal on the Class A-1 Notes pursuant to Section 2.8 of the Indenture dated as of November April 1, 2024 2023 (as amended, supplemented or otherwise modified and in effect from time to time, the “Indenture”) between the Issuer and U.S. Bank Trust CompanyWilmington Trust, National Association, a national banking association, as Indenture Trustee (in such capacity, the “Indenture Trustee”); provided, however, that, if not paid prior to such date, the unpaid principal amount of this Class A-1 Note shall be due and payable on the earlier of the September 2025 May 2024 Distribution Date (the “Class A-1 Final Distribution Date”) and the Redemption Date, if any, pursuant to Section 10.1 of the Indenture. Capitalized terms used but not defined herein are defined in Article I of the Indenture, which also contains rules as to construction that shall be applicable hereto. The Issuer shall pay interest on this Class A-1 Note at the rate per annum shown above on each Distribution Date, until the principal of this Class A-1 Note is paid or made available for payment, on the principal amount of this Class A-1 Note outstanding on the preceding Distribution Date (after giving effect to all payments of principal made on such preceding Distribution Date), subject to certain limitations contained in Section 3.1 of the Indenture. Interest on this Class A-1 Note shall accrue for each Distribution Date from and including the preceding Distribution Date (or, in the case of the initial Distribution Date or if no interest has been paid, from and including the Closing Date) to but excluding such Distribution Date. Interest shall be computed on the basis of actual days elapsed and a 360-day year. Interest on this Class A-1 Note on each Distribution Date shall equal the product of (i) the rate per annum shown above, (ii) the principal amount of this Class A-1 Note outstanding on the preceding Distribution Date (after giving effect to all payments of principal made on such preceding Distribution Date) or, with respect to the initial Distribution Date, on the Closing Date, and (iii) the actual number of days in the applicable interest period divided by 360. The principal of and interest on this Class A-1 Note shall be paid in the manner specified on the reverse hereof.

Form of Class A. 1 Note [For Book-Entry Notes: UNLESS THIS NOTE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION (“DTC”), TO THE ISSUER OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY NOTE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.] [For Retained Notes: THIS NOTE HAS NOT BEEN AND WILL NOT BE REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “1933 ACT”), OR UNDER THE SECURITIES OR BLUE SKY LAWS OF ANY STATE IN THE UNITED STATES OR ANY FOREIGN SECURITIES LAWS. NO SALE, PLEDGE OR OTHER TRANSFER OF THIS NOTE MAY BE MADE BY ANY PERSON UNLESS EITHER (i) SUCH SALE, PLEDGE OR OTHER TRANSFER IS MADE TO THE DEPOSITOR, (ii) SUCH SALE, PLEDGE OR OTHER TRANSFER IS MADE TO AN ACCREDITED INVESTOR THAT EXECUTES A NOTE, SUBSTANTIALLY IN THE FORM SPECIFIED IN THE INDENTURE, TO THE EFFECT THAT IT IS AN ACCREDITED INVESTOR ACTING FOR ITS OWN ACCOUNT (AND NOT FOR THE ACCOUNT OF OTHERS) OR AS A FIDUCIARY OR AGENT FOR OTHERS (WHICH OTHERS ALSO ARE ACCREDITED INVESTORS UNLESS THE HOLDER IS A BANK ACTING IN ITS FIDUCIARY CAPACITY), (iii) SO LONG AS THIS NOTE IS ELIGIBLE FOR RESALE PURSUANT TO RULE 144A UNDER THE 1933 ACT, SUCH SALE, PLEDGE OR OTHER TRANSFER IS MADE TO A PERSON WHO THE PROSPECTIVE TRANSFEROR REASONABLY BELIEVES AFTER DUE INQUIRY IS A QUALIFIED INSTITUTIONAL BUYER, ACTING FOR ITS OWN ACCOUNT (AND NOT FOR THE ACCOUNT OF OTHERS) OR AS A FIDUCIARY OR AGENT FOR OTHERS (WHICH OTHERS ALSO ARE QUALIFIED INSTITUTIONAL BUYERS) TO WHOM NOTICE IS GIVEN THAT THE SALE, PLEDGE OR TRANSFER IS BEING MADE IN RELIANCE ON RULE 144A, OR (iv) SUCH SALE, PLEDGE OR OTHER TRANSFER IS OTHERWISE MADE IN A TRANSACTION EXEMPT FROM THE REGISTRATION REQUIREMENTS OF THE 1933 ACT, IN WHICH CASE THE INDENTURE TRUSTEE SHALL REQUIRE THAT BOTH THE PROSPECTIVE TRANSFEROR AND THE PROSPECTIVE TRANSFEREE CERTIFY TO THE ISSUING ENTITY, THE INDENTURE TRUSTEE AND THE DEPOSITOR IN WRITING THE FACTS SURROUNDING SUCH TRANSFER, WHICH CERTIFICATION SHALL BE IN FORM AND SUBSTANCE SATISFACTORY TO THE INDENTURE TRUSTEE AND THE DEPOSITOR. EXCEPT IN THE CASE OF A TRANSFER DESCRIBED IN CLAUSES (i) OR (iii) ABOVE, THE INDENTURE TRUSTEE SHALL REQUIRE A WRITTEN OPINION OF COUNSEL (WHICH SHALL NOT BE AT THE EXPENSE OF THE ISSUING ENTITY, THE OWNER TRUSTEE, THE INDENTURE TRUSTEE, THE DEPOSITOR OR CARMAX BUSINESS SERVICES, LLC) SATISFACTORY TO THE DEPOSITOR AND THE INDENTURE TRUSTEE TO THE EFFECT THAT SUCH TRANSFER WILL NOT VIOLATE THE 1933 ACT.] [For Retained Notes: UNLESS COUNSEL SATISFACTORY TO THE INDENTURE TRUSTEE SHALL HAVE RENDERED AN OPINION TO THE EFFECT THAT THIS NOTE TO BE SOLD, PLEDGED, OR TRANSFERRED WILL BE CHARACTERIZED AS INDEBTEDNESS FOR UNITED STATES FEDERAL INCOME TAX PURPOSES, A SALE, PLEDGE, OR TRANSFER OF THIS NOTE MAY ONLY BE MADE (1) TO ANY PERSON WHO IS A UNITED STATES PERSON (WITHIN THE MEANING OF SECTION 7701(a)(30) OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE “CODE”)), AND IS NOT ACQUIRING THIS NOTE WITH THE ASSETS OF (I) AN EMPLOYEE BENEFIT PLAN SUBJECT TO TITLE I OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED (“ERISA”), (II) A PLAN SUBJECT TO SECTION 4975 OF THE CODE OR (III) ANY ENTITY WHOSE UNDERLYING ASSETS INCLUDE PLAN ASSETS BY REASON OF A PLAN’S INVESTMENT IN THE ENTITY; AND (2) NO SALE, PLEDGE, OR TRANSFER OF THIS NOTE SHALL BE MADE (I) TO ANY ONE PERSON IN AN AMOUNT LESS THAN $2,000,000 (OR SUCH OTHER AMOUNT AS THE DEPOSITOR MAY DETERMINE IN ORDER TO PREVENT THE ISSUING ENTITY FROM BEING TREATED AS A “PUBLICLY TRADED PARTNERSHIP” UNDER SECTION 7704 OF THE CODE) OR (II) TO A GRANTOR TRUST, S CORPORATION, OR PARTNERSHIP WHERE MORE THAN 50% OF THE VALUE OF A BENEFICIAL OWNER’S INTEREST IN SUCH PASS-THROUGH ENTITY IS ATTRIBUTABLE TO THE PASS-THROUGH ENTITY’S INTEREST IN THIS NOTE, IN EACH CASE, UNLESS (A) AN OPINION OF COUNSEL SATISFACTORY TO THE INDENTURE TRUSTEE AND THE DEPOSITOR THAT SUCH SALE, PLEDGE, OR TRANSFER SHALL NOT CAUSE THE ISSUING ENTITY TO BE TREATED AS AN ASSOCIATION (OR PUBLICLY TRADED PARTNERSHIP) TAXABLE AS A CORPORATION FOR FEDERAL INCOME TAX PURPOSES SHALL HAVE BEEN DELIVERED TO THE INDENTURE TRUSTEE AND THE DEPOSITOR AND (B) THE DEPOSITOR SHALL HAVE PROVIDED PRIOR WRITTEN APPROVAL; PROVIDED, HOWEVER, THAT THE RESTRICTIONS IN THIS PARAGRAPH SHALL NOT CONTINUE TO APPLY TO THIS NOTE (COVERED BY THE OPINION DESCRIBED IN THIS PARAGRAPH) IN THE EVENT COUNSEL SATISFACTORY TO THE INDENTURE TRUSTEE AND THE DEPOSITOR HAS RENDERED AN OPINION, WITH RESPECT TO THE SALE, PLEDGE OR TRANSFER BY THE DEPOSITOR OR AN AFFILIATE THEREOF, TO THE EFFECT THAT THIS NOTE TO BE SOLD, PLEDGED, OR TRANSFERRED WILL BE CHARACTERIZED AS INDEBTEDNESS FOR FEDERAL INCOME TAX PURPOSES. ANY ATTEMPTED SALE, PLEDGE OR OTHER TRANSFER IN CONTRAVENTION OF THIS PARAGRAPH WILL BE VOID AB INITIO AND THE PURPORTED TRANSFEROR WILL CONTINUE TO BE TREATED AS THE OWNER OF THIS NOTE.] [For Retained Notes: UNLESS COUNSEL SATISFACTORY TO THE INDENTURE TRUSTEE SHALL HAVE RENDERED AN OPINION TO THE EFFECT THAT THIS NOTE TO BE SOLD, PLEDGED, OR TRANSFERRED WILL BE CHARACTERIZED AS INDEBTEDNESS FOR UNITED STATES FEDERAL INCOME TAX PURPOSES, BY ACQUIRING THIS NOTE (OR INTEREST HEREIN)NOTE, EACH INITIAL PURCHASER, TRANSFEREE AND OWNER OF A BENEFICIAL INTEREST IN SUCH NOTE WILL BE DEEMED TO REPRESENT, WARRANT AND COVENANT REPRESENT THAT EITHER (A1) IT IS NOT ACQUIRING SUCH NOTE (OR INTEREST THEREIN) WITH THE PLAN ASSETS OF (1I) AN “EMPLOYEE BENEFIT PLAN” (AS DEFINED IN SECTION 3(3) OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED (“ERISA”)) PLAN SUBJECT TO TITLE I OF ERISA, (2II) A “PLAN” DESCRIBED IN SECTION 4975(e)(1) OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE “CODE”), THAT IS PLAN SUBJECT TO SECTION 4975 OF THE CODE, CODE OR (3III) ANY ENTITY OR ACCOUNT WHOSE UNDERLYING ASSETS INCLUDE “PLAN ASSETS” WITHIN THE MEANING OF 29 C.F.R. SECTION 2510.3-101, AS MODIFIED BY SECTION 3(42) OF ERISA ASSETS BY REASON OF A PLAN’S INVESTMENT IN THE ENTITY OR ACCOUNT OR (42) AN EMPLOYEE BENEFIT IT IS ACQUIRING SUCH NOTE WITH THE ASSETS OF A PLAN OR ARRANGEMENT THAT IS NOT SUBJECT TO TITLE I OF ERISA OR SECTION 4975 OF THE CODE BUT IS SUBJECT TO ANY FEDERAL, STATE OR (B) THE ACQUISITIONLOCAL LAW THAT IS, HOLDING AND DISPOSITION OF SUCH NOTE (OR INTEREST THEREIN) WILL NOT GIVE RISE TO A NON-EXEMPT “PROHIBITED TRANSACTION” UNDER SECTION 406 MATERIAL EXTENT, SIMILAR TO THE FOREGOING PROVISIONS OF ERISA OR SECTION 4975 OF THE CODE OR (“SIMILAR LAW”) AND THE ACQUISITION AND HOLDING OF SUCH NOTE WILL NOT GIVE RISE TO A VIOLATION OF ANY FEDERAL, STATE, LOCAL OR OTHER LAW THAT IS SUBSTANTIALLY NONEXEMPT PROHIBITED TRANSACTION UNDER SIMILAR TO TITLE I OF ERISA OR SECTION 4975 OF THE CODE. LAW.] THE PRINCIPAL OF THIS NOTE IS PAYABLE AS SET FORTH IN THE INDENTURE (AS DEFINED BELOW). THE OUTSTANDING PRINCIPAL BALANCE OF THIS NOTE AT ANY TIME MAY BE LESS THAN THE AMOUNT SHOWN ON THE FACE HEREOF. REGISTERED [add for Notes other than Retained Notes: Up to] $[ ] NO. R-[__[ ] CUSIP NO. 14290D AA9 4.73314314J AA8 0.85000% CLASS A-1 ASSET-BACKED NOTE CarMax Auto Owner Trust 20242017-41, a statutory trust organized and existing under the laws of the State of Delaware (herein referred to as the “Issuer”), for value received, hereby promises to pay to [ ], or its registered assigns, the principal sum of [ ] DOLLARS OR SUCH LESSER AMOUNT AS IS SET FORTH IN SCHEDULE I or such lesser amount as is set forth in Schedule I hereto payable on each Distribution Date in an amount equal to the aggregate amount, if any, payable from the Note Payment Account in respect of principal on the Class A-1 Notes pursuant to Section 2.8 of the Indenture dated as of November January 1, 2024 2017 (as amended, supplemented or otherwise modified and in effect from time to time, the “Indenture”) between the Issuer and U.S. Bank Trust Company, National Association, a national banking association, as Indenture Trustee (in such capacity, the “Indenture Trustee”); provided, however, that, if not paid prior to such date, the unpaid principal amount of this Class A-1 Note shall be due and payable on the earlier of the September 2025 February 15, 2018 Distribution Date (the “Class A-1 Final Distribution Date”) and the Redemption Date, if any, pursuant to Section 10.1 of the Indenture. Capitalized terms used but not defined herein are defined in Article I of the Indenture, which also contains rules as to construction that shall be applicable hereto. The Issuer shall pay interest on this Class A-1 Note at the rate per annum shown above on each Distribution Date, until the principal of this Class A-1 Note is paid or made available for payment, on the principal amount of this Class A-1 Note outstanding on the preceding Distribution Date (after giving effect to all payments of principal made on such preceding Distribution Date), subject to certain limitations contained in Section 3.1 of the Indenture. Interest on this Class A-1 Note shall accrue for each Distribution Date from and including the preceding Distribution Date (or, in the case of the initial Distribution Date or if no interest has been paid, from and including the Closing Date) to but excluding such Distribution Date. Interest shall be computed on the basis of actual days elapsed and a 360-day year. Interest on this Class A-1 Note on each Distribution Date shall equal the product of (i) the rate per annum shown above, (ii) the principal amount of this Class A-1 Note outstanding on the preceding Distribution Date (after giving effect to all payments of principal made on such preceding Distribution Date) or, with respect to the initial Distribution Date, on the Closing Date, and (iii) the actual number of days in the applicable interest period divided by 360; provided, however, that the interest payable on this Class A-1 Note on February 15, 2017 shall equal $[ ]. The principal of and interest on this Class A-1 Note shall be paid in the manner specified on the reverse hereof.

Form of Class A. 1 Note [For Book-Entry Notes: UNLESS THIS NOTE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION (“DTC”), TO THE ISSUER OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY NOTE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.] [For Retained Notes: THIS NOTE HAS NOT BEEN AND WILL NOT BE REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “1933 ACT”), OR UNDER THE SECURITIES OR BLUE SKY LAWS OF ANY STATE IN THE UNITED STATES OR ANY FOREIGN SECURITIES LAWS. NO SALE, PLEDGE OR OTHER TRANSFER OF THIS NOTE MAY BE MADE BY ANY PERSON UNLESS EITHER (i) SUCH SALE, PLEDGE OR OTHER TRANSFER IS MADE TO THE DEPOSITOR, (ii) SUCH SALE, PLEDGE OR OTHER TRANSFER IS MADE TO AN ACCREDITED INVESTOR THAT EXECUTES A NOTE, SUBSTANTIALLY IN THE FORM SPECIFIED IN THE INDENTURE, TO THE EFFECT THAT IT IS AN ACCREDITED INVESTOR ACTING FOR ITS OWN ACCOUNT (AND NOT FOR THE ACCOUNT OF OTHERS) OR AS A FIDUCIARY OR AGENT FOR OTHERS (WHICH OTHERS ALSO ARE ACCREDITED INVESTORS UNLESS THE HOLDER IS A BANK ACTING IN ITS FIDUCIARY CAPACITY), (iii) SO LONG AS THIS NOTE IS ELIGIBLE FOR RESALE PURSUANT TO RULE 144A UNDER THE 1933 ACT, SUCH SALE, PLEDGE OR OTHER TRANSFER IS MADE TO A PERSON WHO THE PROSPECTIVE TRANSFEROR REASONABLY BELIEVES AFTER DUE INQUIRY IS A QUALIFIED INSTITUTIONAL BUYER, ACTING FOR ITS OWN ACCOUNT (AND NOT FOR THE ACCOUNT OF OTHERS) OR AS A FIDUCIARY OR AGENT FOR OTHERS (WHICH OTHERS ALSO ARE QUALIFIED INSTITUTIONAL BUYERS) TO WHOM NOTICE IS GIVEN THAT THE SALE, PLEDGE OR TRANSFER IS BEING MADE IN RELIANCE ON RULE 144A, OR (iv) SUCH SALE, PLEDGE OR OTHER TRANSFER IS OTHERWISE MADE IN A TRANSACTION EXEMPT FROM THE REGISTRATION REQUIREMENTS OF THE 1933 ACT, IN WHICH CASE THE INDENTURE TRUSTEE SHALL REQUIRE THAT BOTH THE PROSPECTIVE TRANSFEROR AND THE PROSPECTIVE TRANSFEREE CERTIFY TO THE ISSUING ENTITY, THE INDENTURE TRUSTEE AND THE DEPOSITOR IN WRITING THE FACTS SURROUNDING SUCH TRANSFER, WHICH CERTIFICATION SHALL BE IN FORM AND SUBSTANCE SATISFACTORY TO THE INDENTURE TRUSTEE AND THE DEPOSITOR. EXCEPT IN THE CASE OF A TRANSFER DESCRIBED IN CLAUSES (i) OR (iii) ABOVE, THE INDENTURE TRUSTEE SHALL REQUIRE A WRITTEN OPINION OF COUNSEL (WHICH SHALL NOT BE AT THE EXPENSE OF THE ISSUING ENTITY, THE OWNER TRUSTEE, THE INDENTURE TRUSTEE, THE DEPOSITOR OR CARMAX BUSINESS SERVICES, LLC) SATISFACTORY TO THE DEPOSITOR AND THE INDENTURE TRUSTEE TO THE EFFECT THAT SUCH TRANSFER WILL NOT VIOLATE THE 1933 ACT.] [For Retained Notes: UNLESS COUNSEL SATISFACTORY TO THE INDENTURE TRUSTEE SHALL HAVE RENDERED AN OPINION TO THE EFFECT THAT THIS NOTE TO BE SOLD, PLEDGED, OR TRANSFERRED WILL BE CHARACTERIZED AS INDEBTEDNESS FOR UNITED STATES FEDERAL INCOME TAX PURPOSES, A SALE, PLEDGE, OR TRANSFER OF THIS NOTE MAY ONLY BE MADE (1) TO ANY PERSON WHO IS A UNITED STATES PERSON (WITHIN THE MEANING OF SECTION 7701(a)(30) OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE “CODE”)), AND IS NOT ACQUIRING THIS NOTE WITH THE ASSETS OF (I) AN EMPLOYEE BENEFIT PLAN SUBJECT TO TITLE I OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED (“ERISA”), (II) A PLAN SUBJECT TO SECTION 4975 OF THE CODE OR (III) ANY ENTITY WHOSE UNDERLYING ASSETS INCLUDE PLAN ASSETS BY REASON OF A PLAN’S INVESTMENT IN THE ENTITY; AND (2) NO SALE, PLEDGE, OR TRANSFER OF THIS NOTE SHALL BE MADE (I) TO ANY ONE PERSON IN AN AMOUNT LESS THAN $2,000,000 (OR SUCH OTHER AMOUNT AS THE DEPOSITOR MAY DETERMINE IN ORDER TO PREVENT THE ISSUING ENTITY FROM BEING TREATED AS A “PUBLICLY TRADED PARTNERSHIP” UNDER SECTION 7704 OF THE CODE) OR (II) TO A GRANTOR TRUST, S CORPORATION, OR PARTNERSHIP WHERE MORE THAN 50% OF THE VALUE OF A BENEFICIAL OWNER’S INTEREST IN SUCH PASS-THROUGH ENTITY IS ATTRIBUTABLE TO THE PASS-THROUGH ENTITY’S INTEREST IN THIS NOTE, IN EACH CASE, UNLESS (A) AN OPINION OF COUNSEL SATISFACTORY TO THE INDENTURE TRUSTEE AND THE DEPOSITOR THAT SUCH SALE, PLEDGE, OR TRANSFER SHALL NOT CAUSE THE ISSUING ENTITY TO BE TREATED AS AN ASSOCIATION (OR PUBLICLY TRADED PARTNERSHIP) TAXABLE AS A CORPORATION FOR FEDERAL INCOME TAX PURPOSES SHALL HAVE BEEN DELIVERED TO THE INDENTURE TRUSTEE AND THE DEPOSITOR AND (B) THE DEPOSITOR SHALL HAVE PROVIDED PRIOR WRITTEN APPROVAL; PROVIDED, HOWEVER, THAT THE RESTRICTIONS IN THIS PARAGRAPH SHALL NOT CONTINUE TO APPLY TO THIS NOTE (COVERED BY THE OPINION DESCRIBED IN THIS PARAGRAPH) IN THE EVENT COUNSEL SATISFACTORY TO THE INDENTURE TRUSTEE AND THE DEPOSITOR HAS RENDERED AN OPINION, WITH RESPECT TO THE SALE, PLEDGE OR TRANSFER BY THE DEPOSITOR OR AN AFFILIATE THEREOF, TO THE EFFECT THAT THIS NOTE TO BE SOLD, PLEDGED, OR TRANSFERRED WILL BE CHARACTERIZED AS INDEBTEDNESS FOR FEDERAL INCOME TAX PURPOSES. ANY ATTEMPTED SALE, PLEDGE OR OTHER TRANSFER IN CONTRAVENTION OF THIS PARAGRAPH WILL BE VOID AB INITIO AND THE PURPORTED TRANSFEROR WILL CONTINUE TO BE TREATED AS THE OWNER OF THIS NOTE.] [For Retained Notes: UNLESS COUNSEL SATISFACTORY TO THE INDENTURE TRUSTEE SHALL HAVE RENDERED AN OPINION TO THE EFFECT THAT THIS NOTE TO BE SOLD, PLEDGED, OR TRANSFERRED WILL BE CHARACTERIZED AS INDEBTEDNESS FOR UNITED STATES FEDERAL INCOME TAX PURPOSES, BY ACQUIRING THIS NOTE (OR INTEREST HEREIN), EACH PURCHASER, TRANSFEREE AND OWNER OF A BENEFICIAL INTEREST IN SUCH NOTE WILL BE DEEMED TO REPRESENT, WARRANT AND COVENANT THAT IT IS NOT ACQUIRING SUCH NOTE (OR INTEREST HEREIN) WITH THE ASSETS OF (I) AN EMPLOYEE BENEFIT PLAN SUBJECT TO TITLE I OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED (“ERISA”), (II) A PLAN SUBJECT TO SECTION 4975 OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE “CODE”), (III) ANY ENTITY OR ACCOUNT WHOSE UNDERLYING ASSETS INCLUDE PLAN ASSETS BY REASON OF A PLAN’S INVESTMENT IN THE ENTITY OR ACCOUNT OR (IV) AN EMPLOYEE BENEFIT PLAN OR ARRANGEMENT NOT SUBJECT TO TITLE I OF ERISA OR SECTION 4975 OF THE CODE BUT THAT IS SUBJECT TO ANY FEDERAL, STATE, LOCAL OR OTHER LAW THAT IS SUBSTANTIALLY SIMILAR TO TITLE I OF ERISA OR SECTION 4975 OF THE CODE.] [ERISA Legend For Notes Other Than Retained Notes: BY ACQUIRING THIS NOTE (OR INTEREST HEREIN), EACH PURCHASER, TRANSFEREE AND OWNER OF A BENEFICIAL INTEREST IN SUCH NOTE WILL BE DEEMED TO REPRESENT, WARRANT AND COVENANT THAT EITHER (A) IT IS NOT ACQUIRING SUCH NOTE (OR INTEREST THEREIN) WITH THE PLAN ASSETS OF EITHER (1) AN “EMPLOYEE BENEFIT PLAN” (AS DEFINED IN SECTION 3(3) PLAN SUBJECT TO TITLE I OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED (“ERISA”)) SUBJECT TO TITLE I OF ERISA, (2) A “PLAN” DESCRIBED IN PLAN SUBJECT TO SECTION 4975(e)(1) 4975 OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE “CODE”), THAT IS SUBJECT TO SECTION 4975 OF THE CODE, (3) ANY ENTITY OR ACCOUNT WHOSE UNDERLYING ASSETS INCLUDE “PLAN ASSETS” WITHIN THE MEANING OF 29 C.F.R. SECTION 2510.3-101, AS MODIFIED BY SECTION 3(42) OF ERISA ASSETS BY REASON OF A PLAN’S INVESTMENT IN THE ENTITY OR ACCOUNT OR (4) AN EMPLOYEE BENEFIT PLAN OR ARRANGEMENT NOT SUBJECT TO TITLE I OF ERISA OR SECTION 4975 OF THE CODE BUT THAT IS SUBJECT TO ANY FEDERAL, STATE, LOCAL OR OTHER LAW THAT IS SUBSTANTIALLY SIMILAR TO TITLE I OF ERISA OR SECTION 4975 OF THE CODE (“SIMILAR LAW”) OR (B) THE ACQUISITION, ACQUISITION AND HOLDING AND DISPOSITION OF SUCH NOTE (OR INTEREST THEREIN) WILL NOT GIVE RISE TO A NON-EXEMPT “PROHIBITED TRANSACTION” UNDER SECTION 406 OF ERISA OR SECTION 4975 OF THE CODE OR A VIOLATION OF ANY FEDERAL, STATE, LOCAL OR OTHER LAW THAT IS SUBSTANTIALLY SIMILAR TO TITLE I OF ERISA OR SECTION 4975 OF THE CODE. LAW.] THE PRINCIPAL OF THIS NOTE IS PAYABLE AS SET FORTH IN THE INDENTURE (AS DEFINED BELOW). THE OUTSTANDING PRINCIPAL BALANCE OF THIS NOTE AT ANY TIME MAY BE LESS THAN THE AMOUNT SHOWN ON THE FACE HEREOF. REGISTERED [add for Notes other than Retained Notes: Up to] $[ ] NO. R-[__] CUSIP NO. 14290D AA9 4.73314318M AA7 2.663% CLASS A-1 ASSET-BACKED NOTE CarMax Auto Owner Trust 20242022-43, a statutory trust organized and existing under the laws of the State of Delaware (herein referred to as the “Issuer”), for value received, hereby promises to pay to [ ], or its registered assigns, the principal sum of [ ] DOLLARS OR SUCH LESSER AMOUNT AS IS SET FORTH IN SCHEDULE I or such lesser amount payable on each Distribution Date in an amount equal to the aggregate amount, if any, payable from the Note Payment Account in respect of principal on the Class A-1 Notes pursuant to Section 2.8 of the Indenture dated as of November July 1, 2024 2022 (as amended, supplemented or otherwise modified and in effect from time to time, the “Indenture”) between the Issuer and U.S. Bank Trust CompanyWilmington Trust, National Association, a national banking association, as Indenture Trustee (in such capacity, the “Indenture Trustee”); provided, however, that, if not paid prior to such date, the unpaid principal amount of this Class A-1 Note shall be due and payable on the earlier of the September 2025 July 17, 2023 Distribution Date (the “Class A-1 Final Distribution Date”) and the Redemption Date, if any, pursuant to Section 10.1 of the Indenture. Capitalized terms used but not defined herein are defined in Article I of the Indenture, which also contains rules as to construction that shall be applicable hereto. The Issuer shall pay interest on this Class A-1 Note at the rate per annum shown above on each Distribution Date, until the principal of this Class A-1 Note is paid or made available for payment, on the principal amount of this Class A-1 Note outstanding on the preceding Distribution Date (after giving effect to all payments of principal made on such preceding Distribution Date), subject to certain limitations contained in Section 3.1 of the Indenture. Interest on this Class A-1 Note shall accrue for each Distribution Date from and including the preceding Distribution Date (or, in the case of the initial Distribution Date or if no interest has been paid, from and including the Closing Date) to but excluding such Distribution Date. Interest shall be computed on the basis of actual days elapsed and a 360-day year. Interest on this Class A-1 Note on each Distribution Date shall equal the product of (i) the rate per annum shown above, (ii) the principal amount of this Class A-1 Note outstanding on the preceding Distribution Date (after giving effect to all payments of principal made on such preceding Distribution Date) or, with respect to the initial Distribution Date, on the Closing Date, and (iii) the actual number of days in the applicable interest period divided by 360. The principal of and interest on this Class A-1 Note shall be paid in the manner specified on the reverse hereof.

Form of Class A. 1 Note [For Book-Entry Notes: UNLESS THIS NOTE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION (“DTC”), TO THE ISSUER OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY NOTE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.] [For Retained Notes: THIS NOTE HAS NOT BEEN AND WILL NOT BE REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “1933 ACT”), OR UNDER THE SECURITIES OR BLUE SKY LAWS OF ANY STATE IN THE UNITED STATES OR ANY FOREIGN SECURITIES LAWS. NO SALE, PLEDGE OR OTHER TRANSFER OF THIS NOTE MAY BE MADE BY ANY PERSON UNLESS EITHER (i) SUCH SALE, PLEDGE OR OTHER TRANSFER IS MADE TO THE DEPOSITOR, (ii) SUCH SALE, PLEDGE OR OTHER TRANSFER IS MADE TO AN ACCREDITED INVESTOR THAT EXECUTES A NOTE, SUBSTANTIALLY IN THE FORM SPECIFIED IN THE INDENTURE, TO THE EFFECT THAT IT IS AN ACCREDITED INVESTOR ACTING FOR ITS OWN ACCOUNT (AND NOT FOR THE ACCOUNT OF OTHERS) OR AS A FIDUCIARY OR AGENT FOR OTHERS (WHICH OTHERS ALSO ARE ACCREDITED INVESTORS UNLESS THE HOLDER IS A BANK ACTING IN ITS FIDUCIARY CAPACITY), (iii) SO LONG AS THIS NOTE IS ELIGIBLE FOR RESALE PURSUANT TO RULE 144A UNDER THE 1933 ACT, SUCH SALE, PLEDGE OR OTHER TRANSFER IS MADE TO A PERSON WHO THE PROSPECTIVE TRANSFEROR REASONABLY BELIEVES AFTER DUE INQUIRY IS A QUALIFIED INSTITUTIONAL BUYER, ACTING FOR ITS OWN ACCOUNT (AND NOT FOR THE ACCOUNT OF OTHERS) OR AS A FIDUCIARY OR AGENT FOR OTHERS (WHICH OTHERS ALSO ARE QUALIFIED INSTITUTIONAL BUYERS) TO WHOM NOTICE IS GIVEN THAT THE SALE, PLEDGE OR TRANSFER IS BEING MADE IN RELIANCE ON RULE 144A, OR (iv) SUCH SALE, PLEDGE OR OTHER TRANSFER IS OTHERWISE MADE IN A TRANSACTION EXEMPT FROM THE REGISTRATION REQUIREMENTS OF THE 1933 ACT, IN WHICH CASE THE INDENTURE TRUSTEE SHALL REQUIRE THAT BOTH THE PROSPECTIVE TRANSFEROR AND THE PROSPECTIVE TRANSFEREE CERTIFY TO THE ISSUING ENTITY, THE INDENTURE TRUSTEE AND THE DEPOSITOR IN WRITING THE FACTS SURROUNDING SUCH TRANSFER, WHICH CERTIFICATION SHALL BE IN FORM AND SUBSTANCE SATISFACTORY TO THE INDENTURE TRUSTEE AND THE DEPOSITOR. EXCEPT IN THE CASE OF A TRANSFER DESCRIBED IN CLAUSES (i) OR (iii) ABOVE, THE INDENTURE TRUSTEE SHALL REQUIRE A WRITTEN OPINION OF COUNSEL (WHICH SHALL NOT BE AT THE EXPENSE OF THE ISSUING ENTITY, THE OWNER TRUSTEE, THE INDENTURE TRUSTEE, THE DEPOSITOR OR CARMAX BUSINESS SERVICES, LLC) SATISFACTORY TO THE DEPOSITOR AND THE INDENTURE TRUSTEE TO THE EFFECT THAT SUCH TRANSFER WILL NOT VIOLATE THE 1933 ACT.] [For Retained Notes: UNLESS COUNSEL SATISFACTORY TO THE INDENTURE TRUSTEE SHALL HAVE RENDERED AN OPINION TO THE EFFECT THAT THIS NOTE TO BE SOLD, PLEDGED, OR TRANSFERRED WILL BE CHARACTERIZED AS INDEBTEDNESS FOR UNITED STATES FEDERAL INCOME TAX PURPOSES, A SALE, PLEDGE, OR TRANSFER OF THIS NOTE MAY ONLY BE MADE (1) TO ANY PERSON WHO IS A UNITED STATES PERSON (WITHIN THE MEANING OF SECTION 7701(a)(30) OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE “CODE”)); AND (2) NO SALE, PLEDGE, OR TRANSFER OF THIS NOTE SHALL BE MADE (I) TO ANY ONE PERSON IN AN AMOUNT LESS THAN $2,000,000 (OR SUCH OTHER AMOUNT AS THE DEPOSITOR MAY DETERMINE IN ORDER TO PREVENT THE ISSUING ENTITY FROM BEING TREATED AS A “PUBLICLY TRADED PARTNERSHIP” UNDER SECTION 7704 OF THE CODE) OR (II) TO A GRANTOR TRUST, S CORPORATION, OR PARTNERSHIP WHERE MORE THAN 50% OF THE VALUE OF A BENEFICIAL OWNER’S INTEREST IN SUCH PASS-THROUGH ENTITY IS ATTRIBUTABLE TO THE PASS-THROUGH ENTITY’S INTEREST IN THIS NOTE, IN EACH CASE, UNLESS (A) AN OPINION OF COUNSEL SATISFACTORY TO THE INDENTURE TRUSTEE AND THE DEPOSITOR THAT SUCH SALE, PLEDGE, OR TRANSFER SHALL NOT CAUSE THE ISSUING ENTITY TO BE TREATED AS AN ASSOCIATION (OR PUBLICLY TRADED PARTNERSHIP) TAXABLE AS A CORPORATION FOR FEDERAL INCOME TAX PURPOSES SHALL HAVE BEEN DELIVERED TO THE INDENTURE TRUSTEE AND THE DEPOSITOR AND (B) THE DEPOSITOR SHALL HAVE PROVIDED PRIOR WRITTEN APPROVAL; PROVIDED, HOWEVER, THAT THE RESTRICTIONS IN THIS PARAGRAPH SHALL NOT CONTINUE TO APPLY TO THIS NOTE (COVERED BY THE OPINION DESCRIBED IN THIS PARAGRAPH) IN THE EVENT COUNSEL SATISFACTORY TO THE INDENTURE TRUSTEE AND THE DEPOSITOR HAS RENDERED AN OPINION, WITH RESPECT TO THE SALE, PLEDGE OR TRANSFER BY THE DEPOSITOR OR AN AFFILIATE THEREOF, TO THE EFFECT THAT THIS NOTE TO BE SOLD, PLEDGED, OR TRANSFERRED WILL BE CHARACTERIZED AS INDEBTEDNESS FOR FEDERAL INCOME TAX PURPOSES. ANY ATTEMPTED SALE, PLEDGE OR OTHER TRANSFER IN CONTRAVENTION OF THIS PARAGRAPH WILL BE VOID AB INITIO AND THE PURPORTED TRANSFEROR WILL CONTINUE TO BE TREATED AS THE OWNER OF THIS NOTE.] BY ACQUIRING THIS NOTE (OR INTEREST HEREIN), EACH PURCHASER, TRANSFEREE AND OWNER OF A BENEFICIAL INTEREST IN SUCH NOTE WILL BE DEEMED TO REPRESENT, WARRANT AND COVENANT THAT EITHER (A) IT IS NOT ACQUIRING SUCH NOTE (OR INTEREST THEREIN) WITH THE PLAN ASSETS OF (1) AN “EMPLOYEE BENEFIT PLAN” (AS DEFINED IN SECTION 3(3) OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED (“ERISA”)) SUBJECT TO TITLE I OF ERISA, (2) A “PLAN” DESCRIBED IN SECTION 4975(e)(1) OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE “CODE”), THAT IS SUBJECT TO SECTION 4975 OF THE CODE, (3) ANY ENTITY OR ACCOUNT WHOSE UNDERLYING ASSETS INCLUDE “PLAN ASSETS” WITHIN THE MEANING OF 29 C.F.R. SECTION 2510.3-101, AS MODIFIED BY SECTION 3(42) OF ERISA BY REASON OF A PLAN’S INVESTMENT IN THE ENTITY OR ACCOUNT OR (4) AN EMPLOYEE BENEFIT PLAN OR ARRANGEMENT NOT SUBJECT TO TITLE I OF ERISA OR SECTION 4975 OF THE CODE OR (B) THE ACQUISITION, ACQUISITION AND HOLDING AND DISPOSITION OF SUCH NOTE (OR INTEREST THEREIN) WILL NOT GIVE RISE TO A NON-EXEMPT “PROHIBITED TRANSACTION” UNDER SECTION 406 OF ERISA OR SECTION 4975 OF THE CODE OR A VIOLATION OF ANY FEDERAL, STATE, LOCAL OR OTHER LAW THAT IS SUBSTANTIALLY SIMILAR TO TITLE I OF ERISA OR SECTION 4975 OF THE CODE. THE PRINCIPAL OF THIS NOTE IS PAYABLE AS SET FORTH IN THE INDENTURE (AS DEFINED BELOW). THE OUTSTANDING PRINCIPAL BALANCE OF THIS NOTE AT ANY TIME MAY BE LESS THAN THE AMOUNT SHOWN ON THE FACE HEREOF. REGISTERED [add for Notes other than Retained Notes: Up to] $[ ] NO. R-[__] CUSIP NO. 14290D AA9 4.73314318W AA5 5.511% CLASS A-1 ASSET-BACKED NOTE CarMax Auto Owner Trust 2024-41, a statutory trust organized and existing under the laws of the State of Delaware (herein referred to as the “Issuer”), for value received, hereby promises to pay to [ ], or its registered assigns, the principal sum of [ ] DOLLARS OR SUCH LESSER AMOUNT AS IS SET FORTH IN SCHEDULE I or such lesser amount payable on each Distribution Date in an amount equal to the aggregate amount, if any, payable from the Note Payment Account in respect of principal on the Class A-1 Notes pursuant to Section 2.8 of the Indenture dated as of November January 1, 2024 (as amended, supplemented or otherwise modified and in effect from time to time, the “Indenture”) between the Issuer and U.S. Bank Trust Company, National Association, a national banking association, as Indenture Trustee (in such capacity, the “Indenture Trustee”); provided, however, that, if not paid prior to such date, the unpaid principal amount of this Class A-1 Note shall be due and payable on the earlier of the September January 2025 Distribution Date (the “Class A-1 Final Distribution Date”) and the Redemption Date, if any, pursuant to Section 10.1 of the Indenture. Capitalized terms used but not defined herein are defined in Article I of the Indenture, which also contains rules as to construction that shall be applicable hereto. The Issuer shall pay interest on this Class A-1 Note at the rate per annum shown above on each Distribution Date, until the principal of this Class A-1 Note is paid or made available for payment, on the principal amount of this Class A-1 Note outstanding on the preceding Distribution Date (after giving effect to all payments of principal made on such preceding Distribution Date), subject to certain limitations contained in Section 3.1 of the Indenture. Interest on this Class A-1 Note shall accrue for each Distribution Date from and including the preceding Distribution Date (or, in the case of the initial Distribution Date or if no interest has been paid, from and including the Closing Date) to but excluding such Distribution Date. Interest shall be computed on the basis of actual days elapsed and a 360-day year. Interest on this Class A-1 Note on each Distribution Date shall equal the product of (i) the rate per annum shown above, (ii) the principal amount of this Class A-1 Note outstanding on the preceding Distribution Date (after giving effect to all payments of principal made on such preceding Distribution Date) or, with respect to the initial Distribution Date, on the Closing Date, and (iii) the actual number of days in the applicable interest period divided by 360. The principal of and interest on this Class A-1 Note shall be paid in the manner specified on the reverse hereof.

Form of Class A. 1 Note [For Book-Entry Notes: UNLESS THIS NOTE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION (“DTC”), TO THE ISSUER OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY NOTE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.] [For Retained Notes: THIS NOTE HAS NOT BEEN AND WILL NOT BE REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “1933 ACT”), OR UNDER THE SECURITIES OR BLUE SKY LAWS OF ANY STATE IN THE UNITED STATES OR ANY FOREIGN SECURITIES LAWS. NO SALE, PLEDGE OR OTHER TRANSFER OF THIS NOTE MAY BE MADE BY ANY PERSON UNLESS EITHER (i) SUCH SALE, PLEDGE OR OTHER TRANSFER IS MADE TO THE DEPOSITOR, (ii) SUCH SALE, PLEDGE OR OTHER TRANSFER IS MADE TO AN ACCREDITED INVESTOR THAT EXECUTES A NOTE, SUBSTANTIALLY IN THE FORM SPECIFIED IN THE INDENTURE, TO THE EFFECT THAT IT IS AN ACCREDITED INVESTOR ACTING FOR ITS OWN ACCOUNT (AND NOT FOR THE ACCOUNT OF OTHERS) OR AS A FIDUCIARY OR AGENT FOR OTHERS (WHICH OTHERS ALSO ARE ACCREDITED INVESTORS UNLESS THE HOLDER IS A BANK ACTING IN ITS FIDUCIARY CAPACITY), (iii) SO LONG AS THIS NOTE IS ELIGIBLE FOR RESALE PURSUANT TO RULE 144A UNDER THE 1933 ACT, SUCH SALE, PLEDGE OR OTHER TRANSFER IS MADE TO A PERSON WHO THE PROSPECTIVE TRANSFEROR REASONABLY BELIEVES AFTER DUE INQUIRY IS A QUALIFIED INSTITUTIONAL BUYER, ACTING FOR ITS OWN ACCOUNT (AND NOT FOR THE ACCOUNT OF OTHERS) OR AS A FIDUCIARY OR AGENT FOR OTHERS (WHICH OTHERS ALSO ARE QUALIFIED INSTITUTIONAL BUYERS) TO WHOM NOTICE IS GIVEN THAT THE SALE, PLEDGE OR TRANSFER IS BEING MADE IN RELIANCE ON RULE 144A, OR (iv) SUCH SALE, PLEDGE OR OTHER TRANSFER IS OTHERWISE MADE IN A TRANSACTION EXEMPT FROM THE REGISTRATION REQUIREMENTS OF THE 1933 ACT, IN WHICH CASE THE INDENTURE TRUSTEE SHALL REQUIRE THAT BOTH THE PROSPECTIVE TRANSFEROR AND THE PROSPECTIVE TRANSFEREE CERTIFY TO THE ISSUING ENTITY, THE INDENTURE TRUSTEE AND THE DEPOSITOR IN WRITING THE FACTS SURROUNDING SUCH TRANSFER, WHICH CERTIFICATION SHALL BE IN FORM AND SUBSTANCE SATISFACTORY TO THE INDENTURE TRUSTEE AND THE DEPOSITOR. EXCEPT IN THE CASE OF A TRANSFER DESCRIBED IN CLAUSES (i) OR (iii) ABOVE, THE INDENTURE TRUSTEE SHALL REQUIRE A WRITTEN OPINION OF COUNSEL (WHICH SHALL NOT BE AT THE EXPENSE OF THE ISSUING ENTITY, THE OWNER TRUSTEE, THE INDENTURE TRUSTEE, THE DEPOSITOR OR CARMAX BUSINESS SERVICES, LLC) SATISFACTORY TO THE DEPOSITOR AND THE INDENTURE TRUSTEE TO THE EFFECT THAT SUCH TRANSFER WILL NOT VIOLATE THE 1933 ACT.] [For Retained Notes: UNLESS COUNSEL SATISFACTORY TO THE INDENTURE TRUSTEE SHALL HAVE RENDERED AN OPINION TO THE EFFECT THAT THIS NOTE TO BE SOLD, PLEDGED, OR TRANSFERRED WILL BE CHARACTERIZED AS INDEBTEDNESS FOR UNITED STATES FEDERAL INCOME TAX PURPOSES, A SALE, PLEDGE, OR TRANSFER OF THIS NOTE MAY ONLY BE MADE (1) TO ANY PERSON WHO IS A UNITED STATES PERSON (WITHIN THE MEANING OF SECTION 7701(a)(30) OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE “CODE”)), AND IS NOT ACQUIRING THIS NOTE WITH THE ASSETS OF (I) AN EMPLOYEE BENEFIT PLAN SUBJECT TO TITLE I OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED (“ERISA”), (II) A PLAN SUBJECT TO SECTION 4975 OF THE CODE OR (III) ANY ENTITY WHOSE UNDERLYING ASSETS INCLUDE PLAN ASSETS BY REASON OF A PLAN’S INVESTMENT IN THE ENTITY; AND (2) NO SALE, PLEDGE, OR TRANSFER OF THIS NOTE SHALL BE MADE (I) TO ANY ONE PERSON IN AN AMOUNT LESS THAN $2,000,000 (OR SUCH OTHER AMOUNT AS THE DEPOSITOR MAY DETERMINE IN ORDER TO PREVENT THE ISSUING ENTITY FROM BEING TREATED AS A “PUBLICLY TRADED PARTNERSHIP” UNDER SECTION 7704 OF THE CODE) OR (II) TO A GRANTOR TRUST, S CORPORATION, OR PARTNERSHIP WHERE MORE THAN 50% OF THE VALUE OF A BENEFICIAL OWNER’S INTEREST IN SUCH PASS-THROUGH ENTITY IS ATTRIBUTABLE TO THE PASS-THROUGH ENTITY’S INTEREST IN THIS NOTE, IN EACH CASE, UNLESS (A) AN OPINION OF COUNSEL SATISFACTORY TO THE INDENTURE TRUSTEE AND THE DEPOSITOR THAT SUCH SALE, PLEDGE, OR TRANSFER SHALL NOT CAUSE THE ISSUING ENTITY TO BE TREATED AS AN ASSOCIATION (OR PUBLICLY TRADED PARTNERSHIP) TAXABLE AS A CORPORATION FOR FEDERAL INCOME TAX PURPOSES SHALL HAVE BEEN DELIVERED TO THE INDENTURE TRUSTEE AND THE DEPOSITOR AND (B) THE DEPOSITOR SHALL HAVE PROVIDED PRIOR WRITTEN APPROVAL; PROVIDED, HOWEVER, THAT THE RESTRICTIONS IN THIS PARAGRAPH SHALL NOT CONTINUE TO APPLY TO THIS NOTE (COVERED BY THE OPINION DESCRIBED IN THIS PARAGRAPH) IN THE EVENT COUNSEL SATISFACTORY TO THE INDENTURE TRUSTEE AND THE DEPOSITOR HAS RENDERED AN OPINION, WITH RESPECT TO THE SALE, PLEDGE OR TRANSFER BY THE DEPOSITOR OR AN AFFILIATE THEREOF, TO THE EFFECT THAT THIS NOTE TO BE SOLD, PLEDGED, OR TRANSFERRED WILL BE CHARACTERIZED AS INDEBTEDNESS FOR FEDERAL INCOME TAX PURPOSES. ANY ATTEMPTED SALE, PLEDGE OR OTHER TRANSFER IN CONTRAVENTION OF THIS PARAGRAPH WILL BE VOID AB INITIO AND THE PURPORTED TRANSFEROR WILL CONTINUE TO BE TREATED AS THE OWNER OF THIS NOTE.] [For Retained Notes: UNLESS COUNSEL SATISFACTORY TO THE INDENTURE TRUSTEE SHALL HAVE RENDERED AN OPINION TO THE EFFECT THAT THIS NOTE TO BE SOLD, PLEDGED, OR TRANSFERRED WILL BE CHARACTERIZED AS INDEBTEDNESS FOR UNITED STATES FEDERAL INCOME TAX PURPOSES, BY ACQUIRING THIS NOTE (OR INTEREST HEREIN)NOTE, EACH INITIAL PURCHASER, TRANSFEREE AND OWNER OF A BENEFICIAL INTEREST IN SUCH NOTE WILL BE DEEMED TO REPRESENT, WARRANT AND COVENANT REPRESENT THAT EITHER (A1) IT IS NOT ACQUIRING SUCH NOTE (OR INTEREST THEREIN) WITH THE PLAN ASSETS OF (1I) AN “EMPLOYEE BENEFIT PLAN” (AS DEFINED IN SECTION 3(3) OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED (“ERISA”)) PLAN SUBJECT TO TITLE I OF ERISA, (2II) A “PLAN” DESCRIBED IN SECTION 4975(e)(1) OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE “CODE”), THAT IS PLAN SUBJECT TO SECTION 4975 OF THE CODE, CODE OR (3III) ANY ENTITY OR ACCOUNT WHOSE UNDERLYING ASSETS INCLUDE “PLAN ASSETS” WITHIN THE MEANING OF 29 C.F.R. SECTION 2510.3-101, AS MODIFIED BY SECTION 3(42) OF ERISA ASSETS BY REASON OF A PLAN’S INVESTMENT IN THE ENTITY OR ACCOUNT OR (42) AN EMPLOYEE BENEFIT IT IS ACQUIRING SUCH NOTE WITH THE ASSETS OF A PLAN OR ARRANGEMENT THAT IS NOT SUBJECT TO TITLE I OF ERISA OR SECTION 4975 OF THE CODE BUT IS SUBJECT TO ANY FEDERAL, STATE OR (B) THE ACQUISITIONLOCAL LAW THAT IS, HOLDING AND DISPOSITION OF SUCH NOTE (OR INTEREST THEREIN) WILL NOT GIVE RISE TO A NON-EXEMPT “PROHIBITED TRANSACTION” UNDER SECTION 406 MATERIAL EXTENT, SIMILAR TO THE FOREGOING PROVISIONS OF ERISA OR SECTION 4975 OF THE CODE OR (“SIMILAR LAW”) AND THE ACQUISITION AND HOLDING OF SUCH NOTE WILL NOT GIVE RISE TO A VIOLATION OF ANY FEDERAL, STATE, LOCAL OR OTHER LAW THAT IS SUBSTANTIALLY NONEXEMPT PROHIBITED TRANSACTION UNDER SIMILAR TO TITLE I OF ERISA OR SECTION 4975 OF THE CODE. LAW.] THE PRINCIPAL OF THIS NOTE IS PAYABLE AS SET FORTH IN THE INDENTURE (AS DEFINED BELOW). THE OUTSTANDING PRINCIPAL BALANCE OF THIS NOTE AT ANY TIME MAY BE LESS THAN THE AMOUNT SHOWN ON THE FACE HEREOF. REGISTERED [add for Notes other than Retained Notes: Up to] $[ ] NO. R-[__[ ] CUSIP NO. 14290D AA9 4.73300000XXX0 2.30000% CLASS A-1 ASSET-BACKED NOTE CarMax Auto Owner Trust 20242018-42, a statutory trust organized and existing under the laws of the State of Delaware (herein referred to as the “Issuer”), for value received, hereby promises to pay to [ ], or its registered assigns, the principal sum of [ ] DOLLARS OR SUCH LESSER AMOUNT AS IS SET FORTH IN SCHEDULE I or such lesser amount as is set forth in Schedule I hereto payable on each Distribution Date in an amount equal to the aggregate amount, if any, payable from the Note Payment Account in respect of principal on the Class A-1 Notes pursuant to Section 2.8 of the Indenture dated as of November April 1, 2024 2018 (as amended, supplemented or otherwise modified and in effect from time to time, the “Indenture”) between the Issuer and U.S. Bank Trust CompanyWilmington Trust, National Association, a national banking association, as Indenture Trustee (in such capacity, the “Indenture Trustee”); provided, however, that, if not paid prior to such date, the unpaid principal amount of this Class A-1 Note shall be due and payable on the earlier of the September 2025 May 15, 2019 Distribution Date (the “Class A-1 Final Distribution Date”) and the Redemption Date, if any, pursuant to Section 10.1 of the Indenture. Capitalized terms used but not defined herein are defined in Article I of the Indenture, which also contains rules as to construction that shall be applicable hereto. The Issuer shall pay interest on this Class A-1 Note at the rate per annum shown above on each Distribution Date, until the principal of this Class A-1 Note is paid or made available for payment, on the principal amount of this Class A-1 Note outstanding on the preceding Distribution Date (after giving effect to all payments of principal made on such preceding Distribution Date), subject to certain limitations contained in Section 3.1 of the Indenture. Interest on this Class A-1 Note shall accrue for each Distribution Date from and including the preceding Distribution Date (or, in the case of the initial Distribution Date or if no interest has been paid, from and including the Closing Date) to but excluding such Distribution Date. Interest shall be computed on the basis of actual days elapsed and a 360-day year. Interest on this Class A-1 Note on each Distribution Date shall equal the product of (i) the rate per annum shown above, (ii) the principal amount of this Class A-1 Note outstanding on the preceding Distribution Date (after giving effect to all payments of principal made on such preceding Distribution Date) or, with respect to the initial Distribution Date, on the Closing Date, and (iii) the actual number of days in the applicable interest period divided by 360. The principal of and interest on this Class A-1 Note shall be paid in the manner specified on the reverse hereof.

Form of Class A. 1 Note [For Book-Entry Notes: UNLESS THIS NOTE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION (“DTC”), TO THE ISSUER OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY NOTE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.] [For Retained Notes: THIS NOTE HAS NOT BEEN AND WILL NOT BE REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “1933 ACT”), OR UNDER THE SECURITIES OR BLUE SKY LAWS OF ANY STATE IN THE UNITED STATES OR ANY FOREIGN SECURITIES LAWS. NO SALE, PLEDGE OR OTHER TRANSFER OF THIS NOTE MAY BE MADE BY ANY PERSON UNLESS EITHER (i) SUCH SALE, PLEDGE OR OTHER TRANSFER IS MADE TO THE DEPOSITOR, (ii) SUCH SALE, PLEDGE OR OTHER TRANSFER IS MADE TO AN ACCREDITED INVESTOR THAT EXECUTES A NOTE, SUBSTANTIALLY IN THE FORM SPECIFIED IN THE INDENTURE, TO THE EFFECT THAT IT IS AN ACCREDITED INVESTOR ACTING FOR ITS OWN ACCOUNT (AND NOT FOR THE ACCOUNT OF OTHERS) OR AS A FIDUCIARY OR AGENT FOR OTHERS (WHICH OTHERS ALSO ARE ACCREDITED INVESTORS UNLESS THE HOLDER IS A BANK ACTING IN ITS FIDUCIARY CAPACITY), (iii) SO LONG AS THIS NOTE IS ELIGIBLE FOR RESALE PURSUANT TO RULE 144A UNDER THE 1933 ACT, SUCH SALE, PLEDGE OR OTHER TRANSFER IS MADE TO A PERSON WHO THE PROSPECTIVE TRANSFEROR REASONABLY BELIEVES AFTER DUE INQUIRY IS A QUALIFIED INSTITUTIONAL BUYER, ACTING FOR ITS OWN ACCOUNT (AND NOT FOR THE ACCOUNT OF OTHERS) OR AS A FIDUCIARY OR AGENT FOR OTHERS (WHICH OTHERS ALSO ARE QUALIFIED INSTITUTIONAL BUYERS) TO WHOM NOTICE IS GIVEN THAT THE SALE, PLEDGE OR TRANSFER IS BEING MADE IN RELIANCE ON RULE 144A, OR (iv) SUCH SALE, PLEDGE OR OTHER TRANSFER IS OTHERWISE MADE IN A TRANSACTION EXEMPT FROM THE REGISTRATION REQUIREMENTS OF THE 1933 ACT, IN WHICH CASE THE INDENTURE TRUSTEE SHALL REQUIRE THAT BOTH THE PROSPECTIVE TRANSFEROR AND THE PROSPECTIVE TRANSFEREE CERTIFY TO THE ISSUING ENTITY, THE INDENTURE TRUSTEE AND THE DEPOSITOR IN WRITING THE FACTS SURROUNDING SUCH TRANSFER, WHICH CERTIFICATION SHALL BE IN FORM AND SUBSTANCE SATISFACTORY TO THE INDENTURE TRUSTEE AND THE DEPOSITOR. EXCEPT IN THE CASE OF A TRANSFER DESCRIBED IN CLAUSES (i) OR (iii) ABOVE, THE INDENTURE TRUSTEE SHALL REQUIRE A WRITTEN OPINION OF COUNSEL (WHICH SHALL NOT BE AT THE EXPENSE OF THE ISSUING ENTITY, THE OWNER TRUSTEE, THE INDENTURE TRUSTEE, THE DEPOSITOR OR CARMAX BUSINESS SERVICES, LLC) SATISFACTORY TO THE DEPOSITOR AND THE INDENTURE TRUSTEE TO THE EFFECT THAT SUCH TRANSFER WILL NOT VIOLATE THE 1933 ACT.] [For Retained Notes: UNLESS COUNSEL SATISFACTORY TO THE INDENTURE TRUSTEE SHALL HAVE RENDERED AN OPINION TO THE EFFECT THAT THIS NOTE TO BE SOLD, PLEDGED, OR TRANSFERRED WILL BE CHARACTERIZED AS INDEBTEDNESS FOR UNITED STATES FEDERAL INCOME TAX PURPOSES, A SALE, PLEDGE, OR TRANSFER OF THIS NOTE MAY ONLY BE MADE (1) TO ANY PERSON WHO IS A UNITED STATES PERSON (WITHIN THE MEANING OF SECTION 7701(a)(30) OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE “CODE”)); AND (2) NO SALE, PLEDGE, OR TRANSFER OF THIS NOTE SHALL BE MADE (I) TO ANY ONE PERSON IN AN AMOUNT LESS THAN $2,000,000 (OR SUCH OTHER AMOUNT AS THE DEPOSITOR MAY DETERMINE IN ORDER TO PREVENT THE ISSUING ENTITY FROM BEING TREATED AS A “PUBLICLY TRADED PARTNERSHIP” UNDER SECTION 7704 OF THE CODE) OR (II) TO A GRANTOR TRUST, S CORPORATION, OR PARTNERSHIP WHERE MORE THAN 50% OF THE VALUE OF A BENEFICIAL OWNER’S INTEREST IN SUCH PASS-THROUGH ENTITY IS ATTRIBUTABLE TO THE PASS-THROUGH ENTITY’S INTEREST IN THIS NOTE, IN EACH CASE, UNLESS (A) AN OPINION OF COUNSEL SATISFACTORY TO THE INDENTURE TRUSTEE AND THE DEPOSITOR THAT SUCH SALE, PLEDGE, OR TRANSFER SHALL NOT CAUSE THE ISSUING ENTITY TO BE TREATED AS AN ASSOCIATION (OR PUBLICLY TRADED PARTNERSHIP) TAXABLE AS A CORPORATION FOR FEDERAL INCOME TAX PURPOSES SHALL HAVE BEEN DELIVERED TO THE INDENTURE TRUSTEE AND THE DEPOSITOR AND (B) THE DEPOSITOR SHALL HAVE PROVIDED PRIOR WRITTEN APPROVAL; PROVIDED, HOWEVER, THAT THE RESTRICTIONS IN THIS PARAGRAPH SHALL NOT CONTINUE TO APPLY TO THIS NOTE (COVERED BY THE OPINION DESCRIBED IN THIS PARAGRAPH) IN THE EVENT COUNSEL SATISFACTORY TO THE INDENTURE TRUSTEE AND THE DEPOSITOR HAS RENDERED AN OPINION, WITH RESPECT TO THE SALE, PLEDGE OR TRANSFER BY THE DEPOSITOR OR AN AFFILIATE THEREOF, TO THE EFFECT THAT THIS NOTE TO BE SOLD, PLEDGED, OR TRANSFERRED WILL BE CHARACTERIZED AS INDEBTEDNESS FOR FEDERAL INCOME TAX PURPOSES. ANY ATTEMPTED SALE, PLEDGE OR OTHER TRANSFER IN CONTRAVENTION OF THIS PARAGRAPH WILL BE VOID AB INITIO AND THE PURPORTED TRANSFEROR WILL CONTINUE TO BE TREATED AS THE OWNER OF THIS NOTE.] BY ACQUIRING THIS NOTE (OR INTEREST HEREIN), EACH PURCHASER, TRANSFEREE AND OWNER OF A BENEFICIAL INTEREST IN SUCH NOTE WILL BE DEEMED TO REPRESENT, WARRANT AND COVENANT THAT EITHER (A) IT IS NOT ACQUIRING SUCH NOTE (OR INTEREST THEREIN) WITH THE PLAN ASSETS OF (1) AN “EMPLOYEE BENEFIT PLAN” (AS DEFINED IN SECTION 3(3) OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED (“ERISA”)) SUBJECT TO TITLE I OF ERISA, (2) A “PLAN” DESCRIBED IN SECTION 4975(e)(1) OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE “CODE”), THAT IS SUBJECT TO SECTION 4975 OF THE CODE, (3) ANY ENTITY OR ACCOUNT WHOSE UNDERLYING ASSETS INCLUDE “PLAN ASSETS” WITHIN THE MEANING OF 29 C.F.R. SECTION 2510.3-101, AS MODIFIED BY SECTION 3(42) OF ERISA BY REASON OF A PLAN’S INVESTMENT IN THE ENTITY OR ACCOUNT OR (4) AN EMPLOYEE BENEFIT PLAN OR ARRANGEMENT NOT SUBJECT TO TITLE I OF ERISA OR SECTION 4975 OF THE CODE OR (B) THE ACQUISITION, HOLDING AND DISPOSITION OF SUCH NOTE (OR INTEREST THEREIN) WILL NOT GIVE RISE TO A NON-EXEMPT “PROHIBITED TRANSACTION” UNDER SECTION 406 OF ERISA OR SECTION 4975 OF THE CODE OR A VIOLATION OF ANY FEDERAL, STATE, LOCAL OR OTHER LAW THAT IS SUBSTANTIALLY SIMILAR TO TITLE I OF ERISA OR SECTION 4975 OF THE CODE. THE PRINCIPAL OF THIS NOTE IS PAYABLE AS SET FORTH IN THE INDENTURE (AS DEFINED BELOW). THE OUTSTANDING PRINCIPAL BALANCE OF THIS NOTE AT ANY TIME MAY BE LESS THAN THE AMOUNT SHOWN ON THE FACE HEREOF. REGISTERED [add for Notes other than Retained Notes: Up to] $[ ] NO. R-[__[ ] CUSIP NO. 14290D AA9 4.73314319E AA4 5.532% CLASS A-1 ASSET-BACKED NOTE CarMax Auto Owner Trust 2024-42, a statutory trust organized and existing under the laws of the State of Delaware (herein referred to as the “Issuer”), for value received, hereby promises to pay to [ ], or its registered assigns, the principal sum of [ ] DOLLARS OR SUCH LESSER AMOUNT AS IS SET FORTH IN SCHEDULE I or such lesser amount payable on each Distribution Date in an amount equal to the aggregate amount, if any, payable from the Note Payment Account in respect of principal on the Class A-1 Notes pursuant to Section 2.8 of the Indenture dated as of November April 1, 2024 (as amended, supplemented or otherwise modified and in effect from time to time, the “Indenture”) between the Issuer and U.S. Bank Trust Company, National Association, a national banking association, as Indenture Trustee (in such capacity, the “Indenture Trustee”); provided, however, that, if not paid prior to such date, the unpaid principal amount of this Class A-1 Note shall be due and payable on the earlier of the September May 2025 Distribution Date (the “Class A-1 Final Distribution Date”) and the Redemption Date, if any, pursuant to Section 10.1 of the Indenture. Capitalized terms used but not defined herein are defined in Article I of the Indenture, which also contains rules as to construction that shall be applicable hereto. The Issuer shall pay interest on this Class A-1 Note at the rate per annum shown above on each Distribution Date, until the principal of this Class A-1 Note is paid or made available for payment, on the principal amount of this Class A-1 Note outstanding on the preceding Distribution Date (after giving effect to all payments of principal made on such preceding Distribution Date), subject to certain limitations contained in Section 3.1 of the Indenture. Interest on this Class A-1 Note shall accrue for each Distribution Date from and including the preceding Distribution Date (or, in the case of the initial Distribution Date or if no interest has been paid, from and including the Closing Date) to but excluding such Distribution Date. Interest shall be computed on the basis of actual days elapsed and a 360-day year. Interest on this Class A-1 Note on each Distribution Date shall equal the product of (i) the rate per annum shown above, (ii) the principal amount of this Class A-1 Note outstanding on the preceding Distribution Date (after giving effect to all payments of principal made on such preceding Distribution Date) or, with respect to the initial Distribution Date, on the Closing Date, and (iii) the actual number of days in the applicable interest period divided by 360. The principal of and interest on this Class A-1 Note shall be paid in the manner specified on the reverse hereof.

Form of Class A. 1 Note [For Book-Entry Notes: UNLESS THIS NOTE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION (“DTC”), TO THE ISSUER OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY NOTE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.] [For Retained Notes: THIS NOTE HAS NOT BEEN AND WILL NOT BE REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “1933 ACT”), OR UNDER THE SECURITIES OR BLUE SKY LAWS OF ANY STATE IN THE UNITED STATES OR ANY FOREIGN SECURITIES LAWS. NO SALE, PLEDGE OR OTHER TRANSFER OF THIS NOTE MAY BE MADE BY ANY PERSON UNLESS EITHER (i) SUCH SALE, PLEDGE OR OTHER TRANSFER IS MADE TO THE DEPOSITOR, (ii) SUCH SALE, PLEDGE OR OTHER TRANSFER IS MADE TO AN ACCREDITED INVESTOR THAT EXECUTES A NOTE, SUBSTANTIALLY IN THE FORM SPECIFIED IN THE INDENTURE, TO THE EFFECT THAT IT IS AN ACCREDITED INVESTOR ACTING FOR ITS OWN ACCOUNT (AND NOT FOR THE ACCOUNT OF OTHERS) OR AS A FIDUCIARY OR AGENT FOR OTHERS (WHICH OTHERS ALSO ARE ACCREDITED INVESTORS UNLESS THE HOLDER IS A BANK ACTING IN ITS FIDUCIARY CAPACITY), (iii) SO LONG AS THIS NOTE IS ELIGIBLE FOR RESALE PURSUANT TO RULE 144A UNDER THE 1933 ACT, SUCH SALE, PLEDGE OR OTHER TRANSFER IS MADE TO A PERSON WHO THE PROSPECTIVE TRANSFEROR REASONABLY BELIEVES AFTER DUE INQUIRY IS A QUALIFIED INSTITUTIONAL BUYER, ACTING FOR ITS OWN ACCOUNT (AND NOT FOR THE ACCOUNT OF OTHERS) OR AS A FIDUCIARY OR AGENT FOR OTHERS (WHICH OTHERS ALSO ARE QUALIFIED INSTITUTIONAL BUYERS) TO WHOM NOTICE IS GIVEN THAT THE SALE, PLEDGE OR TRANSFER IS BEING MADE IN RELIANCE ON RULE 144A, OR (iv) SUCH SALE, PLEDGE OR OTHER TRANSFER IS OTHERWISE MADE IN A TRANSACTION EXEMPT FROM THE REGISTRATION REQUIREMENTS OF THE 1933 ACT, IN WHICH CASE THE INDENTURE TRUSTEE SHALL REQUIRE THAT BOTH THE PROSPECTIVE TRANSFEROR AND THE PROSPECTIVE TRANSFEREE CERTIFY TO THE ISSUING ENTITY, THE INDENTURE TRUSTEE AND THE DEPOSITOR IN WRITING THE FACTS SURROUNDING SUCH TRANSFER, WHICH CERTIFICATION SHALL BE IN FORM AND SUBSTANCE SATISFACTORY TO THE INDENTURE TRUSTEE AND THE DEPOSITOR. EXCEPT IN THE CASE OF A TRANSFER DESCRIBED IN CLAUSES (i) OR (iii) ABOVE, THE INDENTURE TRUSTEE SHALL REQUIRE A WRITTEN OPINION OF COUNSEL (WHICH SHALL NOT BE AT THE EXPENSE OF THE ISSUING ENTITY, THE OWNER TRUSTEE, THE INDENTURE TRUSTEE, THE DEPOSITOR OR CARMAX BUSINESS SERVICES, LLC) SATISFACTORY TO THE DEPOSITOR AND THE INDENTURE TRUSTEE TO THE EFFECT THAT SUCH TRANSFER WILL NOT VIOLATE THE 1933 ACT.] [For Retained Notes: UNLESS COUNSEL SATISFACTORY TO THE INDENTURE TRUSTEE SHALL HAVE RENDERED AN OPINION TO THE EFFECT THAT THIS NOTE TO BE SOLD, PLEDGED, OR TRANSFERRED WILL BE CHARACTERIZED AS INDEBTEDNESS FOR UNITED STATES FEDERAL INCOME TAX PURPOSES, A SALE, PLEDGE, OR TRANSFER OF THIS NOTE MAY ONLY BE MADE (1) TO ANY PERSON WHO IS A UNITED STATES PERSON (WITHIN THE MEANING OF SECTION 7701(a)(30) OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE “CODE”)); AND (2) NO SALE, PLEDGE, OR TRANSFER OF THIS NOTE SHALL BE MADE (I) TO ANY ONE PERSON IN AN AMOUNT LESS THAN $2,000,000 (OR SUCH OTHER AMOUNT AS THE DEPOSITOR MAY DETERMINE IN ORDER TO PREVENT THE ISSUING ENTITY FROM BEING TREATED AS A “PUBLICLY TRADED PARTNERSHIP” UNDER SECTION 7704 OF THE CODE) OR (II) TO A GRANTOR TRUST, S CORPORATION, OR PARTNERSHIP WHERE MORE THAN 50% OF THE VALUE OF A BENEFICIAL OWNER’S INTEREST IN SUCH PASS-THROUGH ENTITY IS ATTRIBUTABLE TO THE PASS-THROUGH ENTITY’S INTEREST IN THIS NOTE, IN EACH CASE, UNLESS (A) AN OPINION OF COUNSEL SATISFACTORY TO THE INDENTURE TRUSTEE AND THE DEPOSITOR THAT SUCH SALE, PLEDGE, OR TRANSFER SHALL NOT CAUSE THE ISSUING ENTITY TO BE TREATED AS AN ASSOCIATION (OR PUBLICLY TRADED PARTNERSHIP) TAXABLE AS A CORPORATION FOR FEDERAL INCOME TAX PURPOSES SHALL HAVE BEEN DELIVERED TO THE INDENTURE TRUSTEE AND THE DEPOSITOR AND (B) THE DEPOSITOR SHALL HAVE PROVIDED PRIOR WRITTEN APPROVAL; PROVIDED, HOWEVER, THAT THE RESTRICTIONS IN THIS PARAGRAPH SHALL NOT CONTINUE TO APPLY TO THIS NOTE (COVERED BY THE OPINION DESCRIBED IN THIS PARAGRAPH) IN THE EVENT COUNSEL SATISFACTORY TO THE INDENTURE TRUSTEE AND THE DEPOSITOR HAS RENDERED AN OPINION, WITH RESPECT TO THE SALE, PLEDGE OR TRANSFER BY THE DEPOSITOR OR AN AFFILIATE THEREOF, TO THE EFFECT THAT THIS NOTE TO BE SOLD, PLEDGED, OR TRANSFERRED WILL BE CHARACTERIZED AS INDEBTEDNESS FOR FEDERAL INCOME TAX PURPOSES. ANY ATTEMPTED SALE, PLEDGE OR OTHER TRANSFER IN CONTRAVENTION OF THIS PARAGRAPH WILL BE VOID AB INITIO AND THE PURPORTED TRANSFEROR WILL CONTINUE TO BE TREATED AS THE OWNER OF THIS NOTE.] BY ACQUIRING THIS NOTE (OR INTEREST HEREIN), EACH PURCHASER, TRANSFEREE AND OWNER OF A BENEFICIAL INTEREST IN SUCH NOTE WILL BE DEEMED TO REPRESENT, WARRANT AND COVENANT THAT EITHER (A) IT IS NOT ACQUIRING SUCH NOTE (OR INTEREST THEREIN) WITH THE PLAN ASSETS OF EITHER (1) AN “EMPLOYEE BENEFIT PLAN” (AS DEFINED IN SECTION 3(3) OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED (“ERISA”)) SUBJECT TO TITLE I OF ERISA, (2) A “PLAN” DESCRIBED IN SECTION 4975(e)(1) OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE “CODE”), ) THAT IS SUBJECT TO SECTION 4975 OF THE CODE, (3) ANY ENTITY OR ACCOUNT WHOSE UNDERLYING ASSETS INCLUDE “PLAN ASSETS” WITHIN THE MEANING OF 29 C.F.R. SECTION 2510.3-101, AS MODIFIED BY SECTION 3(42) OF ERISA BY REASON OF A PLAN’S INVESTMENT IN THE ENTITY OR ACCOUNT OR (4) AN EMPLOYEE BENEFIT PLAN OR ARRANGEMENT NOT SUBJECT TO TITLE I OF ERISA OR SECTION 4975 OF THE CODE BUT THAT IS SUBJECT TO ANY FEDERAL, STATE, LOCAL OR OTHER LAW THAT IS SUBSTANTIALLY SIMILAR TO TITLE I OF ERISA OR SECTION 4975 OF THE CODE (“SIMILAR LAW”) OR (B) THE ACQUISITION, ACQUISITION AND HOLDING AND DISPOSITION OF SUCH NOTE (OR INTEREST THEREIN) WILL NOT GIVE RISE TO A NON-EXEMPT “PROHIBITED TRANSACTION” UNDER SECTION 406 OF ERISA OR SECTION 4975 OF THE CODE OR A VIOLATION OF ANY FEDERAL, STATE, LOCAL OR OTHER LAW THAT IS SUBSTANTIALLY SIMILAR TO TITLE I OF ERISA OR SECTION 4975 OF THE CODELAW. THE PRINCIPAL OF THIS NOTE IS PAYABLE AS SET FORTH IN THE INDENTURE (AS DEFINED BELOW). THE OUTSTANDING PRINCIPAL BALANCE OF THIS NOTE AT ANY TIME MAY BE LESS THAN THE AMOUNT SHOWN ON THE FACE HEREOF. REGISTERED [add for Notes other than Retained Notes: Up to] $[ ] NO. R-[__] CUSIP NO. 14290D 14318U AA9 4.7334.466% CLASS A-1 ASSET-BACKED NOTE CarMax Auto Owner Trust 20242022-4, a statutory trust organized and existing under the laws of the State of Delaware (herein referred to as the “Issuer”), for value received, hereby promises to pay to [ ], or its registered assigns, the principal sum of [ ] DOLLARS OR SUCH LESSER AMOUNT AS IS SET FORTH IN SCHEDULE I or such lesser amount payable on each Distribution Date in an amount equal to the aggregate amount, if any, payable from the Note Payment Account in respect of principal on the Class A-1 Notes pursuant to Section 2.8 of the Indenture dated as of November October 1, 2024 2022 (as amended, supplemented or otherwise modified and in effect from time to time, the “Indenture”) between the Issuer and U.S. Bank Trust CompanyWilmington Trust, National Association, a national banking association, as Indenture Trustee (in such capacity, the “Indenture Trustee”); provided, however, that, if not paid prior to such date, the unpaid principal amount of this Class A-1 Note shall be due and payable on the earlier of the September 2025 November 2023 Distribution Date (the “Class A-1 Final Distribution Date”) and the Redemption Date, if any, pursuant to Section 10.1 of the Indenture. Capitalized terms used but not defined herein are defined in Article I of the Indenture, which also contains rules as to construction that shall be applicable hereto. The Issuer shall pay interest on this Class A-1 Note at the rate per annum shown above on each Distribution Date, until the principal of this Class A-1 Note is paid or made available for payment, on the principal amount of this Class A-1 Note outstanding on the preceding Distribution Date (after giving effect to all payments of principal made on such preceding Distribution Date), subject to certain limitations contained in Section 3.1 of the Indenture. Interest on this Class A-1 Note shall accrue for each Distribution Date from and including the preceding Distribution Date (or, in the case of the initial Distribution Date or if no interest has been paid, from and including the Closing Date) to but excluding such Distribution Date. Interest shall be computed on the basis of actual days elapsed and a 360-day year. Interest on this Class A-1 Note on each Distribution Date shall equal the product of (i) the rate per annum shown above, (ii) the principal amount of this Class A-1 Note outstanding on the preceding Distribution Date (after giving effect to all payments of principal made on such preceding Distribution Date) or, with respect to the initial Distribution Date, on the Closing Date, and (iii) the actual number of days in the applicable interest period divided by 360. The principal of and interest on this Class A-1 Note shall be paid in the manner specified on the reverse hereof.

Form of Class A. 1 Note [For Book-Entry Notes: UNLESS THIS NOTE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION (“DTC”), TO THE ISSUER OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY NOTE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.] [For Retained Notes: THIS NOTE HAS NOT BEEN AND WILL NOT BE REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “1933 ACT”), OR UNDER THE SECURITIES OR BLUE SKY LAWS OF ANY STATE IN THE UNITED STATES OR ANY FOREIGN SECURITIES LAWS. NO SALE, PLEDGE OR OTHER TRANSFER OF THIS NOTE MAY BE MADE BY ANY PERSON UNLESS EITHER (i) SUCH SALE, PLEDGE OR OTHER TRANSFER IS MADE TO THE DEPOSITOR, (ii) SUCH SALE, PLEDGE OR OTHER TRANSFER IS MADE TO AN ACCREDITED INVESTOR THAT EXECUTES A NOTE, SUBSTANTIALLY IN THE FORM SPECIFIED IN THE INDENTURE, TO THE EFFECT THAT IT IS AN ACCREDITED INVESTOR ACTING FOR ITS OWN ACCOUNT (AND NOT FOR THE ACCOUNT OF OTHERS) OR AS A FIDUCIARY OR AGENT FOR OTHERS (WHICH OTHERS ALSO ARE ACCREDITED INVESTORS UNLESS THE HOLDER IS A BANK ACTING IN ITS FIDUCIARY CAPACITY), (iii) SO LONG AS THIS NOTE IS ELIGIBLE FOR RESALE PURSUANT TO RULE 144A UNDER THE 1933 ACT, SUCH SALE, PLEDGE OR OTHER TRANSFER IS MADE TO A PERSON WHO THE PROSPECTIVE TRANSFEROR REASONABLY BELIEVES AFTER DUE INQUIRY IS A QUALIFIED INSTITUTIONAL BUYER, ACTING FOR ITS OWN ACCOUNT (AND NOT FOR THE ACCOUNT OF OTHERS) OR AS A FIDUCIARY OR AGENT FOR OTHERS (WHICH OTHERS ALSO ARE QUALIFIED INSTITUTIONAL BUYERS) TO WHOM NOTICE IS GIVEN THAT THE SALE, PLEDGE OR TRANSFER IS BEING MADE IN RELIANCE ON RULE 144A, OR (iv) SUCH SALE, PLEDGE OR OTHER TRANSFER IS OTHERWISE MADE IN A TRANSACTION EXEMPT FROM THE REGISTRATION REQUIREMENTS OF THE 1933 ACT, IN WHICH CASE THE INDENTURE TRUSTEE SHALL REQUIRE THAT BOTH THE PROSPECTIVE TRANSFEROR AND THE PROSPECTIVE TRANSFEREE CERTIFY TO THE ISSUING ENTITY, THE INDENTURE TRUSTEE AND THE DEPOSITOR IN WRITING THE FACTS SURROUNDING SUCH TRANSFER, WHICH CERTIFICATION SHALL BE IN FORM AND SUBSTANCE SATISFACTORY TO THE INDENTURE TRUSTEE AND THE DEPOSITOR. EXCEPT IN THE CASE OF A TRANSFER DESCRIBED IN CLAUSES (i) OR (iii) ABOVE, THE INDENTURE TRUSTEE SHALL REQUIRE A WRITTEN OPINION OF COUNSEL (WHICH SHALL NOT BE AT THE EXPENSE OF THE ISSUING ENTITY, THE OWNER TRUSTEE, THE INDENTURE TRUSTEE, THE DEPOSITOR OR CARMAX BUSINESS SERVICES, LLC) SATISFACTORY TO THE DEPOSITOR AND THE INDENTURE TRUSTEE TO THE EFFECT THAT SUCH TRANSFER WILL NOT VIOLATE THE 1933 ACT.] [For Retained Notes: UNLESS COUNSEL SATISFACTORY TO THE INDENTURE TRUSTEE SHALL HAVE RENDERED AN OPINION TO THE EFFECT THAT THIS NOTE TO BE SOLD, PLEDGED, OR TRANSFERRED WILL BE CHARACTERIZED AS INDEBTEDNESS FOR UNITED STATES FEDERAL INCOME TAX PURPOSES, A SALE, PLEDGE, OR TRANSFER OF THIS NOTE MAY ONLY BE MADE (1) TO ANY PERSON WHO IS A UNITED STATES PERSON (WITHIN THE MEANING OF SECTION 7701(a)(30) OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE “CODE”)); AND (2) NO SALE, PLEDGE, OR TRANSFER OF THIS NOTE SHALL BE MADE (I) TO ANY ONE PERSON IN AN AMOUNT LESS THAN $2,000,000 (OR SUCH OTHER AMOUNT AS THE DEPOSITOR MAY DETERMINE IN ORDER TO PREVENT THE ISSUING ENTITY FROM BEING TREATED AS A “PUBLICLY TRADED PARTNERSHIP” UNDER SECTION 7704 OF THE CODE) OR (II) TO A GRANTOR TRUST, S CORPORATION, OR PARTNERSHIP WHERE MORE THAN 50% OF THE VALUE OF A BENEFICIAL OWNER’S INTEREST IN SUCH PASS-THROUGH ENTITY IS ATTRIBUTABLE TO THE PASS-THROUGH ENTITY’S INTEREST IN THIS NOTE, IN EACH CASE, UNLESS (A) AN OPINION OF COUNSEL SATISFACTORY TO THE INDENTURE TRUSTEE AND THE DEPOSITOR THAT SUCH SALE, PLEDGE, OR TRANSFER SHALL NOT CAUSE THE ISSUING ENTITY TO BE TREATED AS AN ASSOCIATION (OR PUBLICLY TRADED PARTNERSHIP) TAXABLE AS A CORPORATION FOR FEDERAL INCOME TAX PURPOSES SHALL HAVE BEEN DELIVERED TO THE INDENTURE TRUSTEE AND THE DEPOSITOR AND (B) THE DEPOSITOR SHALL HAVE PROVIDED PRIOR WRITTEN APPROVAL; PROVIDED, HOWEVER, THAT THE RESTRICTIONS IN THIS PARAGRAPH SHALL NOT CONTINUE TO APPLY TO THIS NOTE (COVERED BY THE OPINION DESCRIBED IN THIS PARAGRAPH) IN THE EVENT COUNSEL SATISFACTORY TO THE INDENTURE TRUSTEE AND THE DEPOSITOR HAS RENDERED AN OPINION, WITH RESPECT TO THE SALE, PLEDGE OR TRANSFER BY THE DEPOSITOR OR AN AFFILIATE THEREOF, TO THE EFFECT THAT THIS NOTE TO BE SOLD, PLEDGED, OR TRANSFERRED WILL BE CHARACTERIZED AS INDEBTEDNESS FOR FEDERAL INCOME TAX PURPOSES. ANY ATTEMPTED SALE, PLEDGE OR OTHER TRANSFER IN CONTRAVENTION OF THIS PARAGRAPH WILL BE VOID AB INITIO AND THE PURPORTED TRANSFEROR WILL CONTINUE TO BE TREATED AS THE OWNER OF THIS NOTE.] BY ACQUIRING THIS NOTE (OR INTEREST HEREIN), EACH PURCHASER, TRANSFEREE AND OWNER OF A BENEFICIAL INTEREST IN SUCH NOTE WILL BE DEEMED TO REPRESENT, WARRANT AND COVENANT THAT EITHER (A) IT IS NOT ACQUIRING SUCH NOTE (OR INTEREST THEREIN) WITH THE PLAN ASSETS OF (1) AN “EMPLOYEE BENEFIT PLAN” (AS DEFINED IN SECTION 3(3) OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED (“ERISA”)) SUBJECT TO TITLE I OF ERISA, (2) A “PLAN” DESCRIBED IN SECTION 4975(e)(1) OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE “CODE”), THAT IS SUBJECT TO SECTION 4975 OF THE CODE, (3) ANY ENTITY OR ACCOUNT WHOSE UNDERLYING ASSETS INCLUDE “PLAN ASSETS” WITHIN THE MEANING OF 29 C.F.R. SECTION 2510.3-101, AS MODIFIED BY SECTION 3(42) OF ERISA BY REASON OF A PLAN’S INVESTMENT IN THE ENTITY OR ACCOUNT OR (4) AN EMPLOYEE BENEFIT PLAN OR ARRANGEMENT NOT SUBJECT TO TITLE I OF ERISA OR SECTION 4975 OF THE CODE OR (B) THE ACQUISITION, HOLDING AND DISPOSITION OF SUCH NOTE (OR INTEREST THEREIN) WILL NOT GIVE RISE TO A NON-EXEMPT “PROHIBITED TRANSACTION” UNDER SECTION 406 OF ERISA OR SECTION 4975 OF THE CODE OR A VIOLATION OF ANY FEDERAL, STATE, LOCAL OR OTHER LAW THAT IS SUBSTANTIALLY SIMILAR TO TITLE I OF ERISA OR SECTION 4975 OF THE CODE. THE PRINCIPAL OF THIS NOTE IS PAYABLE AS SET FORTH IN THE INDENTURE (AS DEFINED BELOW). THE OUTSTANDING PRINCIPAL BALANCE OF THIS NOTE AT ANY TIME MAY BE LESS THAN THE AMOUNT SHOWN ON THE FACE HEREOF. REGISTERED [add for Notes other than Retained Notes: Up to] $[ ] NO. R-[__[ ] CUSIP NO. 14290D 14319G AA9 4.7335.440% CLASS A-1 ASSET-BACKED NOTE CarMax Auto Owner Trust 2024-43, a statutory trust organized and existing under the laws of the State of Delaware (herein referred to as the “Issuer”), for value received, hereby promises to pay to [ ], or its registered assigns, the principal sum of [ ] DOLLARS OR SUCH LESSER AMOUNT AS IS SET FORTH IN SCHEDULE I or such lesser amount payable on each Distribution Date in an amount equal to the aggregate amount, if any, payable from the Note Payment Account in respect of principal on the Class A-1 Notes pursuant to Section 2.8 of the Indenture dated as of November July 1, 2024 (as amended, supplemented or otherwise modified and in effect from time to time, the “Indenture”) between the Issuer and U.S. Bank Trust Company, National Association, a national banking association, as Indenture Trustee (in such capacity, the “Indenture Trustee”); provided, however, that, if not paid prior to such date, the unpaid principal amount of this Class A-1 Note shall be due and payable on the earlier of the September August 2025 Distribution Date (the “Class A-1 Final Distribution Date”) and the Redemption Date, if any, pursuant to Section 10.1 of the Indenture. Capitalized terms used but not defined herein are defined in Article I of the Indenture, which also contains rules as to construction that shall be applicable hereto. The Issuer shall pay interest on this Class A-1 Note at the rate per annum shown above on each Distribution Date, until the principal of this Class A-1 Note is paid or made available for payment, on the principal amount of this Class A-1 Note outstanding on the preceding Distribution Date (after giving effect to all payments of principal made on such preceding Distribution Date), subject to certain limitations contained in Section 3.1 of the Indenture. Interest on this Class A-1 Note shall accrue for each Distribution Date from and including the preceding Distribution Date (or, in the case of the initial Distribution Date or if no interest has been paid, from and including the Closing Date) to but excluding such Distribution Date. Interest shall be computed on the basis of actual days elapsed and a 360-day year. Interest on this Class A-1 Note on each Distribution Date shall equal the product of (i) the rate per annum shown above, (ii) the principal amount of this Class A-1 Note outstanding on the preceding Distribution Date (after giving effect to all payments of principal made on such preceding Distribution Date) or, with respect to the initial Distribution Date, on the Closing Date, and (iii) the actual number of days in the applicable interest period divided by 360. The principal of and interest on this Class A-1 Note shall be paid in the manner specified on the reverse hereof.

Form of Class A. 1 Note [For Book-Entry Notes: UNLESS THIS NOTE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION (“DTC”), TO THE ISSUER OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY NOTE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.] [For Retained Notes: THIS NOTE HAS NOT BEEN AND WILL NOT BE REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “1933 ACT”), OR UNDER THE SECURITIES OR BLUE SKY LAWS OF ANY STATE IN THE UNITED STATES OR ANY FOREIGN SECURITIES LAWS. NO SALE, PLEDGE OR OTHER TRANSFER OF THIS NOTE MAY BE MADE BY ANY PERSON UNLESS EITHER (i) SUCH SALE, PLEDGE OR OTHER TRANSFER IS MADE TO THE DEPOSITOR, (ii) SUCH SALE, PLEDGE OR OTHER TRANSFER IS MADE TO AN ACCREDITED INVESTOR THAT EXECUTES A NOTE, SUBSTANTIALLY IN THE FORM SPECIFIED IN THE INDENTURE, TO THE EFFECT THAT IT IS AN ACCREDITED INVESTOR ACTING FOR ITS OWN ACCOUNT (AND NOT FOR THE ACCOUNT OF OTHERS) OR AS A FIDUCIARY OR AGENT FOR OTHERS (WHICH OTHERS ALSO ARE ACCREDITED INVESTORS UNLESS THE HOLDER IS A BANK ACTING IN ITS FIDUCIARY CAPACITY), (iii) SO LONG AS THIS NOTE IS ELIGIBLE FOR RESALE PURSUANT TO RULE 144A UNDER THE 1933 ACT, SUCH SALE, PLEDGE OR OTHER TRANSFER IS MADE TO A PERSON WHO THE PROSPECTIVE TRANSFEROR REASONABLY BELIEVES AFTER DUE INQUIRY IS A QUALIFIED INSTITUTIONAL BUYER, ACTING FOR ITS OWN ACCOUNT (AND NOT FOR THE ACCOUNT OF OTHERS) OR AS A FIDUCIARY OR AGENT FOR OTHERS (WHICH OTHERS ALSO ARE QUALIFIED INSTITUTIONAL BUYERS) TO WHOM NOTICE IS GIVEN THAT THE SALE, PLEDGE OR TRANSFER IS BEING MADE IN RELIANCE ON RULE 144A, OR (iv) SUCH SALE, PLEDGE OR OTHER TRANSFER IS OTHERWISE MADE IN A TRANSACTION EXEMPT FROM THE REGISTRATION REQUIREMENTS OF THE 1933 ACT, IN WHICH CASE THE INDENTURE TRUSTEE SHALL REQUIRE THAT BOTH THE PROSPECTIVE TRANSFEROR AND THE PROSPECTIVE TRANSFEREE CERTIFY TO THE ISSUING ENTITY, THE INDENTURE TRUSTEE AND THE DEPOSITOR IN WRITING THE FACTS SURROUNDING SUCH TRANSFER, WHICH CERTIFICATION SHALL BE IN FORM AND SUBSTANCE SATISFACTORY TO THE INDENTURE TRUSTEE AND THE DEPOSITOR. EXCEPT IN THE CASE OF A TRANSFER DESCRIBED IN CLAUSES (i) OR (iii) ABOVE, THE INDENTURE TRUSTEE SHALL REQUIRE A WRITTEN OPINION OF COUNSEL (WHICH SHALL NOT BE AT THE EXPENSE OF THE ISSUING ENTITY, THE OWNER TRUSTEE, THE INDENTURE TRUSTEE, THE DEPOSITOR OR CARMAX BUSINESS SERVICES, LLC) SATISFACTORY TO THE DEPOSITOR AND THE INDENTURE TRUSTEE TO THE EFFECT THAT SUCH TRANSFER WILL NOT VIOLATE THE 1933 ACT.] [For Retained Notes: UNLESS COUNSEL SATISFACTORY TO THE INDENTURE TRUSTEE SHALL HAVE RENDERED AN OPINION TO THE EFFECT THAT THIS NOTE TO BE SOLD, PLEDGED, OR TRANSFERRED WILL BE CHARACTERIZED AS INDEBTEDNESS FOR UNITED STATES FEDERAL INCOME TAX PURPOSES, A SALE, PLEDGE, OR TRANSFER OF THIS NOTE MAY ONLY BE MADE (1) TO ANY PERSON WHO IS A UNITED STATES PERSON (WITHIN THE MEANING OF SECTION 7701(a)(30) OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE “CODE”)); AND (2) NO SALE, PLEDGE, OR TRANSFER OF THIS NOTE SHALL BE MADE (I) TO ANY ONE PERSON IN AN AMOUNT LESS THAN $2,000,000 (OR SUCH OTHER AMOUNT AS THE DEPOSITOR MAY DETERMINE IN ORDER TO PREVENT THE ISSUING ENTITY FROM BEING TREATED AS A “PUBLICLY TRADED PARTNERSHIP” UNDER SECTION 7704 OF THE CODE) OR (II) TO A GRANTOR TRUST, S CORPORATION, OR PARTNERSHIP WHERE MORE THAN 50% OF THE VALUE OF A BENEFICIAL OWNER’S INTEREST IN SUCH PASS-THROUGH ENTITY IS ATTRIBUTABLE TO THE PASS-THROUGH ENTITY’S INTEREST IN THIS NOTE, IN EACH CASE, UNLESS (A) AN OPINION OF COUNSEL SATISFACTORY TO THE INDENTURE TRUSTEE AND THE DEPOSITOR THAT SUCH SALE, PLEDGE, OR TRANSFER SHALL NOT CAUSE THE ISSUING ENTITY TO BE TREATED AS AN ASSOCIATION (OR PUBLICLY TRADED PARTNERSHIP) TAXABLE AS A CORPORATION FOR FEDERAL INCOME TAX PURPOSES SHALL HAVE BEEN DELIVERED TO THE INDENTURE TRUSTEE AND THE DEPOSITOR AND (B) THE DEPOSITOR SHALL HAVE PROVIDED PRIOR WRITTEN APPROVAL; PROVIDED, HOWEVER, THAT THE RESTRICTIONS IN THIS PARAGRAPH SHALL NOT CONTINUE TO APPLY TO THIS NOTE (COVERED BY THE OPINION DESCRIBED IN THIS PARAGRAPH) IN THE EVENT COUNSEL SATISFACTORY TO THE INDENTURE TRUSTEE AND THE DEPOSITOR HAS RENDERED AN OPINION, WITH RESPECT TO THE SALE, PLEDGE OR TRANSFER BY THE DEPOSITOR OR AN AFFILIATE THEREOF, TO THE EFFECT THAT THIS NOTE TO BE SOLD, PLEDGED, OR TRANSFERRED WILL BE CHARACTERIZED AS INDEBTEDNESS FOR FEDERAL INCOME TAX PURPOSES. ANY ATTEMPTED SALE, PLEDGE OR OTHER TRANSFER IN CONTRAVENTION OF THIS PARAGRAPH WILL BE VOID AB INITIO AND THE PURPORTED TRANSFEROR WILL CONTINUE TO BE TREATED AS THE OWNER OF THIS NOTE.] BY ACQUIRING THIS NOTE (OR INTEREST HEREIN), EACH PURCHASER, TRANSFEREE AND OWNER OF A BENEFICIAL INTEREST IN SUCH NOTE WILL BE DEEMED TO REPRESENT, WARRANT AND COVENANT THAT EITHER (A) IT IS NOT ACQUIRING SUCH NOTE (OR INTEREST THEREIN) WITH THE PLAN ASSETS OF EITHER (1) AN “EMPLOYEE BENEFIT PLAN” (AS DEFINED IN SECTION 3(3) OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED (“ERISA”)) SUBJECT TO TITLE I OF ERISA, (2) A “PLAN” DESCRIBED IN SECTION 4975(e)(1) OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE “CODE”), THAT IS SUBJECT TO SECTION 4975 OF THE CODE, (3) ANY ENTITY OR ACCOUNT WHOSE UNDERLYING ASSETS INCLUDE “PLAN ASSETS” WITHIN THE MEANING OF 29 C.F.R. SECTION 2510.3-101, AS MODIFIED BY SECTION 3(42) OF ERISA BY REASON OF A PLAN’S INVESTMENT IN THE ENTITY OR ACCOUNT OR (4) AN EMPLOYEE BENEFIT PLAN OR ARRANGEMENT NOT SUBJECT TO TITLE I OF ERISA OR SECTION 4975 OF THE CODE OR (B) THE ACQUISITION, ACQUISITION AND HOLDING AND DISPOSITION OF SUCH NOTE (OR INTEREST THEREIN) WILL NOT GIVE RISE TO A NON-EXEMPT “PROHIBITED TRANSACTION” UNDER SECTION 406 OF ERISA OR SECTION 4975 OF THE CODE OR A VIOLATION OF ANY FEDERAL, STATE, LOCAL OR OTHER LAW THAT IS SUBSTANTIALLY SIMILAR TO TITLE I OF ERISA OR SECTION 4975 OF THE CODE. THE PRINCIPAL OF THIS NOTE IS PAYABLE AS SET FORTH IN THE INDENTURE (AS DEFINED BELOW). THE OUTSTANDING PRINCIPAL BALANCE OF THIS NOTE AT ANY TIME MAY BE LESS THAN THE AMOUNT SHOWN ON THE FACE HEREOF. REGISTERED [add for Notes other than Retained Notes: Up to] $[ ] NO. R-[__] CUSIP NO. 14290D AA9 4.73314319B AA0 5.631% CLASS A-1 ASSET-BACKED NOTE CarMax Auto Owner Trust 20242023-43, a statutory trust organized and existing under the laws of the State of Delaware (herein referred to as the “Issuer”), for value received, hereby promises to pay to [ ], or its registered assigns, the principal sum of [ ] DOLLARS OR SUCH LESSER AMOUNT AS IS SET FORTH IN SCHEDULE I or such lesser amount payable on each Distribution Date in an amount equal to the aggregate amount, if any, payable from the Note Payment Account in respect of principal on the Class A-1 Notes pursuant to Section 2.8 of the Indenture dated as of November July 1, 2024 2023 (as amended, supplemented or otherwise modified and in effect from time to time, the “Indenture”) between the Issuer and U.S. Bank Trust CompanyWilmington Trust, National Association, a national banking association, as Indenture Trustee (in such capacity, the “Indenture Trustee”); provided, however, that, if not paid prior to such date, the unpaid principal amount of this Class A-1 Note shall be due and payable on the earlier of the September 2025 July 2024 Distribution Date (the “Class A-1 Final Distribution Date”) and the Redemption Date, if any, pursuant to Section 10.1 of the Indenture. Capitalized terms used but not defined herein are defined in Article I of the Indenture, which also contains rules as to construction that shall be applicable hereto. The Issuer shall pay interest on this Class A-1 Note at the rate per annum shown above on each Distribution Date, until the principal of this Class A-1 Note is paid or made available for payment, on the principal amount of this Class A-1 Note outstanding on the preceding Distribution Date (after giving effect to all payments of principal made on such preceding Distribution Date), subject to certain limitations contained in Section 3.1 of the Indenture. Interest on this Class A-1 Note shall accrue for each Distribution Date from and including the preceding Distribution Date (or, in the case of the initial Distribution Date or if no interest has been paid, from and including the Closing Date) to but excluding such Distribution Date. Interest shall be computed on the basis of actual days elapsed and a 360-day year. Interest on this Class A-1 Note on each Distribution Date shall equal the product of (i) the rate per annum shown above, (ii) the principal amount of this Class A-1 Note outstanding on the preceding Distribution Date (after giving effect to all payments of principal made on such preceding Distribution Date) or, with respect to the initial Distribution Date, on the Closing Date, and (iii) the actual number of days in the applicable interest period divided by 360. The principal of and interest on this Class A-1 Note shall be paid in the manner specified on the reverse hereof.