B, Left, Up, Right, Right, Right, A, Start, Start, Z, Right, A, Up, Z, Bottom-C, Start.

Note: Use the D-Pad for the directional commands.

World Driver Championship Midway Code (Red Skid Marks)
While racing, press the following buttons (use the D-pad for this code): B, Left, Up, Down, Right 3 times, and Down. If used correctly, you start seeing red skid marks instead of the black ones.

World Driver Championship Top Down Racing
Enter the following code while you're racing: Up, Up, Up, A, Left, A, A, A

This puts the game into a top-down mode, that's a lot like the old arcade racers of yore.

World Driver Championship Infinite Restart Credits
Enter the following code while you're racing: Z, Right, Z, Right, Right, Start, Z, A, Right, Z, Start.

This will set your restart credits to 9 -- and they will never go down. Note that when you save and then restore the game, this cheat will be reset. If you want unlimited restarts again, just enter the code one more time.

World Driver Championship All GT2 Cars
To unlock all GT2 cars, begin a Championship game and at the team selection screen enter: Z-trigger, RIGHT, Z, Z, Z, B, down-C, A, RIGHT, Start.

Note: This cheat must be entered with the analog control stick.

World Driver Championship Drive 2000 Falcon Interceptor
To drive the 2000 Falcon Interceptor, you must win all racing events. Then race the Novice Cup and defeat the Interceptor in the Novice Cup races. The Interceptor will become a staple of the Boss Racing Team!

World Driver Championship Unlock Sydney Circuits
To unlock the last GT1 circuit (Sydney) and all of its variations WITHOUT saving it to the memory card, simply begin a Championship game and enter "FROZENSKY" as a name.
To save Sydney Circuit cheat to a memory card, perform the following steps:

1. Remove the memory card from the controller.
2. Start a new Championship game, entering "FROZENSKY" as the driver name.
3. Accept an offer from one of the two race teams. (If you do not accept either offer, the code will not work.)
4. Go back to the main menu and select Quick Race.
5. Choose a race mode and select the Sydney circuit.
6. Go back to the main menu and install your memory card.
7. Load a saved game.
8. Save the game.