Start the game and then press [~] to bring up the console. Enter the codes in the following format:
You substitute the [code] part for one of the cheat codes listed below:
AllRaces - Unlock all Races of both Career Mode & Single Race Mode [will be saved to your current profile (for single race mode only though)].
AllTyres - Unlock all Tires for purchase in the parts shop [will be saved to your current profile].
AddCash (#) - Add # money to (or subtract money from) your current profile Usage [will be saved to your current profile].
SkipCarCheck - Allow any car to compete in any race.
Some races require a specific class of vehicle. An example is the X-Treme Touring Races which require a monsoon, retti, or badler class of vehicle. Use this Cheat Code to allow any car type to enter the race. It bypasses the following error. "wrong car: You can't drive this car in this race."