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EXHIBIT 99.6
ADDENDUM
TO
STOCK OPTION AGREEMENT
The following provisions are hereby incorporated into, and are
hereby made a part of, that certain Stock Option Agreement dated (2) (the
"Option Agreement") by and between Onyx Acceptance Corporation (the
"Corporation") and (1) ("Optionee") evidencing the non-statutory stock option
granted on such date to Optionee under the terms of the Corporation's 1996 Stock
Option/Stock Issuance Plan, and such provisions shall be effective immediately.
Capitalized terms in this Addendum, to the extent not otherwise defined herein,
shall have the meanings assigned to such terms in the Option Agreement.
SPECIAL TAX ELECTIONS
1. STOCK WITHHOLDING. Optionee is hereby granted the election
to have the Corporation withhold, at the time the option is exercised, a portion
of the purchased Option Shares with an aggregate Fair Market Value not to exceed
one hundred percent (100%) of the applicable Federal, state and local income and
employment tax withholding liability (the "Taxes") Optionee incurs in connection
with the option exercise.
Any such exercise of the election must be effected in
accordance with the following terms and conditions:
(i) The election must be made on or before the
date the liability for the Taxes is determined (the "Tax Determination
Date").
(ii) The election shall be irrevocable.
(iii) The election shall be subject to the
approval of the Plan Administrator, and none of the Option Shares shall
be withheld in satisfaction of the Taxes, except to the extent the
election is approved by the Plan Administrator.
(iv) The Option Shares withheld pursuant to the
election shall be valued at Fair Market Value on the Tax Determination
Date.
(v) In no event may the number of shares of
Common Stock requested to be withheld exceed in Fair Market Value the
dollar amount of the Taxes.
2. STOCK DELIVERY. Optionee is hereby granted the election to
deliver, at the time the option is exercised, one or more shares of Common Stock
previously acquired by Optionee (other than in connection with the acquisition
triggering the Taxes) with an aggregate Fair Market Value not to exceed one
hundred percent (100%) of the Taxes.
Any such exercise of the election must be effected in
accordance with the following terms and conditions:
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(i) The election must be made on or before the
Tax Determination Date for the Taxes.
(ii) The election shall be irrevocable.
(iii) The election shall be subject to the
approval of the Plan Administrator, and none of the delivered shares of
Common Stock shall be accepted in satisfaction of the Taxes, except to
the extent the election is approved by the Plan Administrator.
(iv) The shares of Common Stock delivered in
satisfaction of the Taxes shall be valued at Fair Market Value on the
Tax Determination Date.
(v) In no event may the number of delivered
shares exceed in Fair Market Value the dollar amount of the Taxes.
IN WITNESS WHEREOF, Onyx Acceptance Corporation has caused
this Addendum to be executed by its duly-authorized officer, and Optionee has
executed this Addendum, all as of the Effective Date specified below.
ONYX ACCEPTANCE CORPORATION
By:______________________________________
Title:___________________________________
_________________________________________
(1), OPTIONEE
EFFECTIVE DATE:_____________, 199__
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