Although we have all of the cheats listed here already, they can be unlocked for selection automatically when certain conditions are met in-game. First, you must achieve a first place finish in all of the global events, which will bring you to one last head-to-head race. After winning that race, all of the cheats will be unlocked in the same place where the cheats are otherwise inserted in the game.
Successfully complete the game with all 51 gold trophies to unlock all cheats and special cars unlocked. You will also unlock a final Head to Head with Ravenwest consisting of three laps around Circuit de la Sarthe that must be done under the Extreme difficulty setting. The race is worth $20 million and also awards you bonus cars, allowing you to have a total of 47 cars in your garage.
Complete as many driver jobs as possible. You will get a $4,500 bonus if you do not use the Flashback option.
Get on top of both the Team and Driver leaderboards to unlock the Grid Gamerpic.
To unlock the Global License, you have to acquire each of the other regional licenses in the game. Then, earn a million Global Points to unlock the Global License. All other not yet acquired licenses will be automatically acquired when you do.
An elite difficulty level called Ninja is available for selection in the game once you’ve won every trophy and successfully completed each head-to-head race.
Use one of the following methods to access the cheats.
Enter one of the following codes to unlock the corresponding car in Grid World and Raceday. Note: You must have 40,000 in funds to start your own team to get the option to view and test drive the bonus cars.
Complete all the global events in first place to unlock the final Head 2 Head race with Ravenwest. Win that race to unlock all cheats. To activate them, select "Options" at the main menu, then "Bonus Codes".
Enter "TUN58396" as a code to unlock all drift cars.
Enter "MUS59279" as a code to unlock all muscle cars.
Enter "F93857372" as a code to unlock the Buchbinder 320si Livery.
Enter "G29782655" as a code to unlock the GameStation BMW 320si Livery.
Enter "M38572343" as a code to unlock the Micromania Pagani Zonda R Livery.
Enter "P47203845" as a code to unlock the Play.com Aston Martin DBR9 Livery.
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