you shouldn't need any cheats, what you should also try to do is if you are good enough race tier 1 as long as you can hold in tier 2 and then do the same when you get the tier 2 car going into tier 3
i agree. And a note to all - you CAN use your tier1 car all the way into tier 3. It's not impossible. Once you reach tier 3, however, you will need to do a coupla races to unlock a cool car and then buy it. That part is quite difficult but yet again it is not impossible. Just keep your blockers handy and active and opt for the checkpoint races insted of the normal races cos theres no opponents then.
The REAL DK has spoken