Need  for  Speed  Carbon 

Infinite nitrous

At the title screen, press Left, Up, Left, Down, Left, Down, Right, Square.

Infinite crew charge

At the title screen, press Down, Up(2), Right, Left(2), Right, Square.

Infinite SpeedBreaker

At the title screen, press Down, Right(2), Left, Right, Up, Down, Square.

Need For Speed Carbon Logo Vinyls

At the title screen, press Right, Up, Down, Up, Down, Left, Right, Square to unlock the Need For Speed Carbon Logo Vinyls.

Extra money

At the title screen, press Down, Up, Left, Down, Right, Up, Square, Triangle to get an extra $10,000 in Career mode.

On succesfully entering any of these codes, you'll receive a message.

Collectors Edition cars

Successfully complete the indicated event(s) in the Challenge Series to unlock the corresponding car:

Crew members

Successfully complete the indicated task to unlock the corresponding crew member:

Sal: Successfully complete four to six races

Yumi: Defeat Kenji

Fast Money

Upon completing Career mode, use Samson as your wingman with Neville in your crew. You can repeat all the races where you used a wingman, and using a wingman net's you an extra $250. You can gain the bonus on first time races as well.

Maximizing Speedtrap advantage

Before Speedtrap races, activate your Blocker/Brawler. When coming up on a speed

trap, stop your B/B. It will crash the other cars, and dramatically slow their time. The best time to use it is right before the Trap.