Predator car:
Beat the Sport Series with the Five-Oh car.

Mano car:
Beat the Sport Series with the Predator car.

Squirrel car:
Beat the Light Series.

Insect car:
Beat the Light Series with the Squirrel car.

Forklift:

Beat the Light Series with the Insect car.

Mountain Dew pick-up:
Beat the Heavy Series.

Ol' Truck:
Beat the Heavy Series with the Mountain Dew pick-up.

Camper:
Beat the Heavy Series with the Ol' Truck.

Semi:
Beat the California Cup.

Dozer:
Beat the California Cup with the Semi.

GameShark Codes

Always Place 1st     80151c010000

Have all tracks      81168f8cffff

Have Predator        800aae670001

Have Mano            800aae6b0001

Have Five oh         800aae6f0001

Have Mt Dew          800aae730001

Have Insect          800aae7f0001

Have Squirrel        800aae8b0001

Have Forklift        800aae8f0001

Have Ol' Truck       800aae9f0001

Have Camper          800aaea30001

Have Semi            800aaea70001

Have Dozer           800aaeab0001

Thanks to Revolution readers John Pelech, Gophermon, Scott Welch, Squekyn64, MIKE, and Jeremy!