Sounds lik eyouhave missed out on all the fun then.
I birthday glitched all the 20 million cars waaaaay back in November of 2010. Duped every car that was a pain to win more than once, traded all the prize cars needed and had my first X1 in early December.
All that is left now is drive in pathetic circles on either Indy or the basement of SSR7.
This game really has that little depth to it.
You know what the greatest insult of all is, the highest payout in the game is the final race - Talk about idiotic.
The one time you NO LONGER NEED XP, you receive the single highest XP prize.
Same goes for money - by the time you are done and dont need credits any longer, you complete the 24 hours of Nurburg and receive all the cash you need.
The ONLY reason people are glitching this game is because the "career path" is the single worst career path ever to be published in a racing/driving game since Viper Racing - and at least Viper Rcing had a fantastic sound engine - the Vipers actually sounded like Vipers, not Dysan vacuum cleaners.