Cheat mode
Type the following code fast (not ultra fast though) in the main menu correctly and a message will pop up:
[Down], [Up], [Up], [Right], [Left], [Left], [X] - Inifinte Crew Charge
[Left], [Up], [Left], [Down], [Left], [Down], [Right], [X] - Inifinte NOS
[Down], [Right], [Right], [Left], [Right], [Up], [Down], [X] - Inifinte SpeedBreaker
[Right], [Up], [Down], [Up], [Down], [Left], [Right], [X] - Need For Speed Carbon Logo Vinyls Unlocked
[Up], [Up], [Down], [Down], [Down], [Down], [Up], [X] - Need For Speed Carbon Special Logo Vinyls Unlocked