In the Options menu, select codes and enter one of the following codes:
|SAFETYNET||5 free repair markers|
|ITSABOUTYOU||Acquire Audi TT|
|ENERGIZERLITHIUM||Acquire bonus vinyls|
|CASTROLSYNTEC||Acquire Castrol Syntec Vinyl|
|HORSEPOWER||Acquire Chevelle SS|
|COKEZERO||Acquire Coke Zero Golf GTi|
|WORLDSLONGESTLASTING||Acquire Dodge Viper SRT10|
|MITSUBISHIGOFAR||Acquire Mitsubishi Lancer Evolution|
|LEIPZIG||Acquire Progressive Bonus Vinyl|
|ZEROZEROZERO||Coca-Cola sonsored Volkswagen GTI in Garage|
|UNLOCKALLTHINGS||Unlock Nissan 240 SX, Pontiac GTO, Chevy Cobalt SS, and Dodge Viper SRT 10|
On Career 2 if you have a game that is only at 1% to 5% delete that Career then select 'Start New Career' and then everytime you play the game go to Career 2 go to Career, next go to 'Cheat Codes', out in the cheat, after you put the cheat in go to the 'Main Screen' then select Career, go to your garage and you'll have some new cars and if you sell them all you'll get CASH 90,780 I think.
Thanks to Revolution Reader markjan!