Go to the main screen, and then Extras. Enter the passwords to have the desired effect.
IEVEPIX Unlocks All Cars and 1 Million Credits
GIVEALL Unlocks All Tracks
WOTKINS Unlocks Flatmobile Car
RUTTO Unlocks Pimpster Car
KALJAKOPPA Unlocks Rocket Car
GIEVCARPLZ Unlocks School Bus
To unlock the best car in each class, simply win the class
Insetta Win Race Finals
Venom Win Derby Finals cup in the Grand Finals.
Walkthroughs 
