Dural - Type at the settings screen, for whichever car you want
Garag - Repairs the damage on your car
Holigan - For a real surprise - let chaos rip!
Label - Show the players name above the car, name is even visible if the car isn't.
Map+F9 - Enhanced map, show cars as numbers 1 to 8.
Map - Show the track map in place of the tacometer.
Mirror - Enables REVERSE button on Track selection, type this on main menu.
Retro - Rear view mirror Rocket - Type at the settings screen to get 300 credits instead of 200
Scrshots - Type at the beginning of a race, then enter ALT+F12 to capture screenshots.
Valay - Type at option menu for Damage Control