Cars

All races:
Enter MATTL66 as a code.

All cars:
Enter YAYCARS as a code.

All tracks and mini-games:
Enter IF900HP as a code.

Maters Speedy Circuit and Maters Countdown cleanup:
Enter TRGTEXC as a code.
Jason Anderson.

Super fast start:
Enter IMSPEED as a code.
chimpysunk.

Unlimited boost:
Enter VROOOOM as a code.
.

All movies:
Enter WATCHIT as a code.
harrises.

All concept art:
Enter CONC3PT as a code.
harrises.

All paint jobs:
Enter R4MONE as a code.
MichaelAOgden.

Hint: Avoid getting lost:
If you ever get lost in the desert, follow Mater or any other car without bumping into them. They will take you back to Radiator Springs.
Jordan Miller.

Hint: Lightning bolt:
The first stripe (near the fire house) of the new road is actually a lightning bolt.
IdaFatBoy.