One Stop Shop marker
At the start screen, press: up, up, down, down, left, right, up, down to unlock a special marker for the Junkman Engine part in the back room of the One Stop Shop in Career mode. Note: This code can only be enabled once per car.
Burger King Challenge
At the start screen, press: up, down, up, down, left, right, left, right
Castrol Syntec Ford GT
At the "Press Start" screen, press: L, R, R, R, right, left, right, down
Bonus $10,000
If you have a saved game file from Need For Speed: Underground 2 on your memory card or hard drive, you get an extra $10,000 in Career mode.