Whats the money cheat for Forza motorsport 2

It was fixed in an update and even if it wasnt it totally screw up your hard drive on the xbox. It would make your xbox go horribly slow

*correction* This was fixed but you are still able to do this so long as your game is not patched. You simply buy a car and go to a part upgrade that has three or more to choose from. You buy the second to last part and than press right trigger and X at the same time. If done right it will slide over to the last part and ask you if you want to sell it. Simply hit yes and you will receive the full buy price of the part.

I recommend buying the Camaro SS as soon as you can and getting a bit of money and than go to the motor swaps. Buy the RWD - LS7 Powertrain and sell it as the RWD - CS.R 427 V8 Powertrain which will get you around 43,800cr every time. I've only found a few other parts which sell for about the same. If you plan to go back online with the game after I would recommend doing this until you have around 30+ million credits because once you patch you won't be able to do this again and removing the patch will corrupt your saved game and you will have to start from scratch.