CheatCodes.com has all the official GRID PC cheats to unlock everything. If you know of any that we don't have, please let us know.
All published and official codes as of Thursday May 23, 2013 for GRID are shown below. We also have this game on PC, Nintendo DS, Xbox 360, PlayStation 3, and sometimes tricks from other game systems will also work on PC.
Go to your Grid Folder and then the AI folder. Remove the file \\\ "ai_vehicle_config \\\". If you start a race, the opponents stay and you can enjoy the race. Make a backup of this file before removing so you can restore the game's original functionality.
Found some tricks that we don't have? Got some helpful hints, tips, or tactics we don't know about? Tell us and you could win a free PC game (or any other game you want for any video game system)!