Unlockable cars:

24 carat gold car with gold rims:
     Finish all six areas to complete the game and unlock the 24 carat
gold car with gold rims.

The Gov'ner:
     Win the 1st place in all six Game Show mode episodes.

HW Prototype 12:
     Win the 1st place in the Tiki Island episode.

Pony-Up:
     Win the 1st place in the Jurassic Jam episode.

Rodger Dodger:
     Win the 1st place in the Zero Gravity Zone episode.

Super Tuned:
     Win the 1st place in the Spider Alley episode.

Switchback:
     Win the 1st place in the Lava Land episode.

Zotic:
     Win the 1st place in the Buccaneer Bay episode.

Vulture:
     Finish on the 2nd place or higher in the Jurassic Jam episode.

Jester:
     Finish on the 2nd place or higher in the Zero Gravity Zone episode.

MS-T Suzuka:
     Finish on the 2nd place or higher in the Spider Alley episode.

Muscle Tone:
     Finish on the 2nd place or higher in the Tiki Island episode.

Overbored:
     Finish on the 2nd place or higher in the Buccaneer Bay episode.

Power Pipes:
     Finish on the 2nd place or higher in the Lava Land episod.


Unlock all rims:
     Win the 1st place in all races.


Bonus wheel rims:
     Win the indicated race to unlock the corresponding wheel rims.

Rim 4: 
Win the Terror Saur challenge in the Jurassic Jam TM episode.

Rim 5: 
Win the Dinosaur Boneyard challenge in the Jurassic Jam TM episode.

Rim 6: 
Win the Black Widow's Nest challenge in the Spider Alley TM episode.

Rim 7: 
Win the Insect Hive challenge in the Spider Alley TM episode.

Rim 8: 
Win the Whiteskull Cliffs challenge in the Buccaneer's Bay TM episode.

Rim 9: 
Win the Monster of the Deep challenge in the Buccaneer's Bay TM episode.

Rim 10: 
Win the Jungle Snake Pit challenge in the Tiki Island TM episode.

Rim 11: 
Win the Gator Forest challenge in the Tiki Island TM episode.

Rim 12: 
Win the Solar Strip challenge in the Zero Gravity Zone TM episode.

Rim 13: 
Win the Satellite Mission challenge in the Zero Gravity Zone TM episode.

Rim 14: 
Win the Fire Mountain challenge in the Lava Land TM episode.

Rim 15: 
Win the Volcano Battle challenge in the Lava Land TM episode.