Cars

Type the following codes in cheat menu:
Unlock all Cars - YAYCARS
Quick Start - IMSPEED
Unlock all tracks and mini games - IF900HP
Unlock all races - MATTL66
Unlock Unlimited Boost - VROOOOM
Unlock concept arts - CONC3PT
Unlock Movies - WATCHIT
Master's Speedy Circuit and Countdown Cleanup - TRGTEXC
Unlock paint jobs - R4MONE
Drive on fire - TORCHED

To unlock all cars :
At the screen that says start enter up,up,down,down,left,right,left,b,a,b it works
if that dont work try up,down,up,down,left,right,left,b,a,b
Submitted by: kimmy