Bonus track and car
At the title screen, press Circle, X, Triangle, Square, Circle, X, Triangle, Square, Circle, X, Triangle, Square.
Drag race
For one player mode, on the Indy 500 mode screen, highlight the "Qualify" option and hold L1 + L2 + R1 + R2 + Start. For two player mode, at the handicap screen, hold L1 + L2 + R1 + R2 + Start.
