Press Square, L1, Square, L1, Triangle, Right, Triangle, Right at the main menu. A message will confirm correct code entry. Alternately, win the World Championship.
Unlock Ferrari F550
At the main menu, press L1, Square, L1, Square, Right, R1, Right, R1.
Unlock Ferrari F50
At the main menu, press L1, Triangle, L1, Triangle, Right, L2, Right, L2.
Unlock BMW Z8
To unlock the BMW Z8, go to the main menu and enter this code: SQUARE, RIGHT, SQUARE, RIGHT, R2, TRIANGLE, R2, TRIANGLE.
Unlock HSV Coupe GTS
To unlock the HSV Coupe GTS, go to the main menu and enter this code: L1, L2, L1, L2, R1, TRIANGLE, R1, TRIANGLE.
Unlock Porsche Carerra GT
To unlock the Porsche Carerra GT, go to the main menu and enter this code: LEFT, RIGHT, LEFT, RIGHT, R1, R2, R1, R2.
Lotus Elise
Enter the following code at the Main Menu: Press Triangle, R2, Triangle, R2, Left, Square, Left, Square.
Lamborghini SE
Enter the following codes at the Main Menu: Press Right, Up, Down, R2, R1, X, Triangle, Triangle, R2, R2, L2, L2.
Unlock Chevy Corvette Z06
At the main menu press the following sequence of buttons: Left, R2, Left, R2, L1, R1, L1, R1.
Unlock Ferrari 360 Spyder
At the main menu press the following sequence of buttons: Right, right right circle cirle R2 L1 L2.
Unlock Mercedes CLK GTR
At the main menu press the following sequence of buttons: R2, R1, R2, R1, RIGHT, TRIANGLE, RIGHT, TRIANGLE.
Unlock Aston Martin V12 Vanquish
At the Main Menu, press R2, Right, R2, Right, Triangle, Left, Triangle, Left.
Lamborgini Diablo 6.0 VT
At the main menu screen press: Right, R2, Right, R2, R1, L1, R1, L1 to unlock the HSV Coupe GTS.
Unlock Mustang Cobra R
At the Main Menu, press Left, Triangle, Left, Triangle, R1, L1, R1, L1.
Free Roam
Go to Hot Pursuit or World Championship mode then go to challenge mode, then go Free Run mode then select a point to point track (or a circuit) and just drive around. Note: You can't finish a race in Free Run Mode.
