GRID Cheats

go to options then bonus codes.

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.

To unlock Bonus cars, from the main GRID menu go to
Options > Bonus Codes > Enter Code and enter the bonus Code in the space onscreen.
(May work with XBox 360 and PS3)

Total number of Single Player Achievements: 43
Total number of Multiplayer Achievements: 7
Total Points: 1000
Spin & Win
Reward: 10 Points
Objective: Complete a 360º spin and still win the race.

Airborne
Reward: 15 Points
Objective: Get the car airborne for 1 second.

Road Block
Reward: 10 Points
Objective: Be involved in a 3 car pile-up.

Car Wreck
Reward: 5 Points
Objective: Cause insane damage to your car.

Combo King
Reward: 20 Points
Objective: Get a x50 Drift Multiplayer.

Gotta Drive 'Em All
Reward: 30 Points
Objective: Drive every car.

Driver for Hire
Reward: 10 Points
Objective: Race for a team from every region.

When Will I Be Famous?
Reward: 20 Points
Objective: Get onto a Hall of Fame Leaderboard.

Global License
Reward: 20 Points
Objective: Unlock your Global License.

New Kid on the Block
Reward: 5 Points
Objective: Complete your first race.

First Wheels
Reward: 5 Points
Objective: Buy your first car.

Full Rep
Reward: 10 Points
Objective: Earn the full reputation available on EXTREME difficulty.

Corporate Power
Reward: 10 Points
Objective: Fill all your sponsor slots.

Stick Shift
Reward: 10 Points
Objective: Win a race using manual transmission.

Gentleman Driver
Reward: 30 Points
Objective: Win an entire GRID World Event without making contact with other cars.

Hard Charger
Reward: 20 Points
Objective: Win a 12 car race starting from the back of the Grid.

High Mileage
Reward: 30 Points
Objective: Drive 750 miles in a single car.

Short Haul
Reward: 30 Points
Objective: Drive a total of 500 miles.

Long Haul
Reward: 40 Points
Objective: Drive a total of 1000 miles.

Head 2 Head
Reward: 30 Points
Objective: Win your first Head 2 Head race.

Hire & Fire
Reward: 10 Points
Objective: Hire a new teammate with a higher rank than your current one.

Flashback & Win
Reward: 5 Points
Objective: Use the Flashback feature and win the race.

Keep Rolling
Reward: 10 Points
Objective: Roll your car 20 times.

Sunday Drivers
Reward: 30 Points
Objective: Finish a race at least one lap ahead of the rest of the field in GRID World or Race Day.

You Again?
Reward: 20 Points
Objective: Lap an opponent in a 12 car GRID World race.

Last Man Standing
Reward: 20 Points
Objective: Be the last survivor of a single player Demolition Derby.

Le Mans Rookie
Reward: 15 Points
Objective:...