Enter these on either high score table or New season name:

stone Heavy Cars
feather light Cars
float Low Gravity
fat tires Increase tire size.
no wheels Cars Float
vet me Wins the rookie season
im a pro Wins veteran season
noviscous No mud or water slow down
banzai Turns off collision with other vehicles
radbrad Realistic gravity
spinner Cars wheels can turn 90 degrees.
Weeoo All Cars, Trucks and tracks