CARMAGEDDON SUPER EXTRA DUPER CHEAT CODES!:

THE BIG ASS CHEAT:

At the scene where you choose, race, vehicle, shop etc... type in:
ENABLE  very quickly.  This gives you access to all the cars, parts,
and courses.

MORE BIG ASS CHEATS:

After typing in ENABLE as talked about above.  Start a race.  Hit
F4 until  CHEAT MODE  appears.  Then all the following will become
avalible:

F5  = Total Repair (FREE!)
F6  = Toggle Invulnerablity
F7  = Adds 30 seconds to timer
F8  = Freeze or Unfreeze timer
F10 = Increment lap counter
F11 = Earn 5000 credits instantly
F12 = Switch between each opponents camera and your own.  External only
Shift & F6 = Show opponents on a map
Shift & F7 = Adds 300 seconds to timer
Shift & F8 = Toggle shadow between none/your car only/all cars
Shift & F10 = Increment checkpoint counter
Shift & F11 = Lose 5000 credits instantly
Crtl & F8 = Toggle shadow between solid (faster)/translucent
Crtl & 1 = (On the keypad) Toggle "Fly mode"
IN FLY MODE:
5 = Place car back on ground
6 = Fly down
9 = Fly up

BACK IN CHEAT MODE:
0 = Bonus
1 = Mega Bonus
2 = Pedestrians glued to ground
3 = Giant pedestrians
4 = Explosive pedestrians
5 = Hot Rod
6 = Turbo pedestrians
7 = Invunerability
8 = Free Repairs
9 = Instant repairs
Shift & 0 = Frozen timer
Shift & 1 = Underwater ability
Shift & 2 = Time bonus
Shift & 3 = Trash your car
Shift & 4 = Blow up your car
Shift & 5 = Frozen opponents
Shift & 6 = Frozen cops
Shift & 7 = Turbo opponents
Shift & 8 = Turbo cops
Shift & 9 = Wierd gravity effects
Alt & 0 = Pinball mode
Alt & 1 = Wall climber
Alt & 2 = Bouncing car
Alt & 3 = Jelly suspension
Alt & 4 = Pedestrians shown on map
Alt & 5 = Pedestrian extro-basturd ray (hurts!)
Alt & 6 = Greased tires
Alt & 7 = Acme damage magnifier
Shift & Alt & 2 = Instant handbrake
Shift & Alt & 4 = Turbo!
Shift & Alt & 5 = Mega TURBO!
Shift & Alt & 6 = Blind pedestrians
Shift & Alt & 7 = Pedestrian ReSpawn
Shift & Alt & 8 = 5 Free recovery vouchers
Shift & Alt & 9 = Solid granite car!
Crtl & 0 = Rock Springs
Crtl & 1 = Drugs
Crtl & 2 = Grip-o-matic tires
Crtl & 3 = Pedestrian Harvest