Here it is: 1c041548-1456089c What it works on: Cars you can buy, and the one in the first garage slot. Does not work on prize cars Does not work on PAL, but I will post the PAL code next. What it does: it tricks GT3 into thinking that you've driven it for enough miles, and gotten the oil change, and you have the final HP reading on the car. EX:Civic 3 Door-HP after sup up+oil change=379 HP after code=391 How to use it: When you load up the code, the car in the first slot already has the code working on it. Now you can buy a car, buy all of the parts and oil change, and then save game. Load up the game again and the code will be working on that car. This code does save on the game, so you don't have to load the code for every car again. On some cars, it seems to start working on the car as soon as you get an oil change. Credit for code: All credit for this code goes to APX1 of the GTH Forum.