Extract the files and run the trainer (usually as an Administrator) before launching the game.
Unlimited N2O (Nitrous), SpeedBreaker, and Crew Charge. nfs carbon unlock all cars trainer 12l
Unlocking all cars in Need for Speed: Carbon (v1.2) is a popular way for players to access end-game vehicles like the or the BMW M3 GTR without grinding through the entire career. Extract the files and run the trainer (usually