EXHIBIT 4.3 REGISTRATION RIGHTS AGREEMENT This Registration Rights Agreement (this "Agreement") is made and entered into as of March 31, 2005, by and among Boundless Motor Sports Racing, Inc., a Colorado corporation (the "Company"), and the purchasers...Registration Rights Agreement • April 5th, 2005 • Boundless Motor Sports Racing Inc • Blank checks • New York
RECITALS:Exchange Agreement • April 5th, 2005 • Boundless Motor Sports Racing Inc • Blank checks • New York
AGREEMENTSeries B Convertible Preferred Stock Purchase Agreement • April 5th, 2005 • Boundless Motor Sports Racing Inc • Blank checks • New York
