Juiced Cheats

Enter "PING" as a code at the cheats screen to unlock all cars in arcade mode.
Code - Effect
PING - Unlocks all cars

Turn on your PS2 load up your game then after that go to extras then go on cheats the put in the code PINT. The code that you see on other sites thay say type in the code FAST all thoes codes dont trust me 100% out of a million people will know.

Type in tint and you will gain all the respect players cars

Enter ping in the code box.If this dosn't work also try pint.heres another fast gives money

On code section insert PING to activate the code.

In career mode, go to your garage and do something with one of your cars (for example, switch a part or get a different paint job). The game should autosave. Then, go back to your race menu. Go in a sprint and bet all your money on one car that looks the fastest. It it does not win at least three races out of four, turn off the PlayStation 2 and turn it back on. It will load your last autosave. Try the same sprint again until you win then find a different sprint and start the entire process again.

All Cars:
Enter "PING" as a code at the cheats screen to unlock all cars in Arcade mode.
Infinite Money:
Enter "FAST" as a code at the cheats screen to get unlimited money in Career mode.