Hot Wheels Stunt Track Challenge [cheats]

Faster speed:
Whenever you go on a ramp, flip your car forwards by pressing Up to increase your speed.

All rims:
Finish in first place in all races.

24 carat gold car with gold rims:
Successfully complete the game.

Unlock HW Prototype 12
Finish first in the Tiki Island episode

Unlock Jester
Finish first or second in the Zero Gravity Zone episode

Unlock MS-T Suzuka
Finish first or second in the Spider Alley episode

Unlock Muscle Tone
Finish first or second in the Tiki Island episode

Unlock Overbored
Finish first or second in the Buccaneer Bay episode

Unlock Pony-Up
Finish first in the Jurassic Jam episode

Unlock Power Pipes
Finish first or second in the Lava Land episod

Unlock Rodger Dodger
Finish first in the Zero Gravity Zone episode

Unlock Super Tuned
Finish first in the Spider Alley episode

Unlock Switchback
Finish first in the Lava Land episode

Unlock The Gov'ner
Finish first in all six of the Game Show mode episodes

Unlock Vulture
Finish first or second in the Jurassic Jam episode

Unlock Zotic
Finish first in the Buccaneer Bay episode.

Bonus wheel rims
Win the indicated race to unlock the corresponding wheel rims.
Wheel rim 4: Terror Saur race in the Jurassic Jam TM episode.
Wheel rim 5: Dinosaur Boneyard race in the Jurassic Jam TM episode.
Wheel rim 6: Black Widow's Nest race in the Spider Alley TM episode.
Wheel rim 7: Insect Hive race in the Spider Alley TM episode.
Wheel rim 8: Whiteskull Cliffs race in the Buccaneer's Bay TM episode.
Wheel rim 9: Monster of the Deep race in the Buccaneer's Bay TM episode.
Wheel rim 10: Jungle Snake Pit race in the Tiki Island TM episode.
Wheel rim 11: Gator Forest race in the Tiki Island TM episode.
Wheel rim 12: Solar Strip race in the Zero Gravity Zone TM episode.
Wheel rim 13: Satellite Mission race in the Zero Gravity Zone TM episode.
Wheel rim 14: Fire Mountain race in the Lava Land TM episode.
Wheel rim 15: Volcano Battle race in the Lava Land TM episode.