Invincibility
 
 At the options menu, hold R1 + R2 and press Up, Left, Right, Down,
 Triangle, Circle, X.
 
 Infinite money
 
 At the car and item selection screen, hold L2 + R2 and press Left(2),
 Right(2), Square(2), Circle(2). If you entered the code correctly,
 you will hear a sound. 
 
 Infinite nitros
 
 Pause the game, then hold R1 + R2 and press Down(3), Circle(3).