Drive a limousine
Pause game play, then hold R1 and press Square, X(3), Triangle, L1, R1. Quit the game, go to main menu, then press R1 + L1 + L2 + R2 + Square. Choose Joy Ridin' mode and you will be able to select a limousine.

Invisibility
Pause game play, then press R1, L1(2), R2, L1(2), L2. A sound will confirm correct code entry. Repeat this code to disable its effect.

Lighter cars
Pause game play, then press L1, R1(2), L2, R2(2). A sound will confirm correct code entry. Repeat this code to disable its effect.

No gravity
Pause game play, then press R1, R2, R1, R2, Up(3). A sound will confirm correct code entry. Repeat this code to disable its effect.

Increase time warp
Pause game play, then press R1, L1, L2, R2, Right(3). A sound will confirm correct code entry. This can be repeated up to three times to increase the effect.

Decrease time warp
Pause game play, then press R2, L2, L1, R1, Left(3). A sound will confirm correct code entry. This can be repeated up to three times to increase the effect.