Unlock schemes
Finish a racing season in Expert mode to unlock a third color scheme for the vehicles.

Buggy
To unlock the Beelzebub Buggy, finish expert mode in first place.

Unlock expert races
To unlock more Expert races, finish Expert mode with the Beelzebub Buggy on the Championship difficulty level.

Jet Buggy
Achieve 100% on the level checker when building your car to gain acess to the Jet Buggy.

LE-2001 truck
At the mode selection screen, press Y, X, Right, Left, Right, Left, Down(2), Up(2). Alternately, successfully complete expert mode in first place with the Coyote.

T4 fighter jet
At the mode selection screen, press Left, Right, Down, X(4). Alternately, achieve 100% on the level checker when building your car.

Additional colors
At the mode selection screen, press Down, Left, Up, Right, X, Y, L, R to unlock a fourth color set. Alternately, successfully complete expert mode.

Random weather in time attack mode
At the mode selection screen, press R, X(7), Y(7).