Cars

Select 'Options' from the main menu, then select 'Cheats' and
enter the following codes:
matti33 - Unlocks All Tracks and Mini Games
watchit - Unlocks All Movie Clips
yaycars - Unlocks All Cars
conc3pt - Unlocks Art
vroooom - Infinite Boost
trgtexc - Unlocks Mater's Speedy Circuit

 