Cars Codes -

Cheat Mode
Enter the following codes in the "Cheats" section:

CONC3PT - All Art Concept
WATCHIT - All Movies
R4MONE - All Paint Jobs
IMSPEED - Super Fast Start
VROOOOM - Unlimited boost
YAYCARS - Unlock All Cars
MATTL66 - Unlock All races
IF900HP - Unlock everything in the game

Achievements
Complete each achievement to get the allotted gamerscore:

LA International Speedway (100) - Win this race and finish in 1st place.
Lizzies Postcard Hunt (100) - Collect all available postcards in Postcard Hunt.
Monster Truck Mayhem (50) - Win this race and finish in 1st place.
Motor Speedway of the South (50) - Win this race and finish in 1st place.
Ornament Valley (75) - Complete necessary activities to unlock Ornament Valley.
Ornament Valley GP (50) - Win this race and finish in 1st place.
Palm Mile Speedway (75) - Win this race and finish in 1st place.
Radiator Springs GP (50) - Win this race and finish in 1st place.
Rustbucket Race-O-Rama (50) - Win this race and finish in 1st place.
Sheriffs Hot Pursuit (50) - Successfully complete all levels of Sheriffs Hot Pursuit.
Smasherville Motor Speedway (75) - Win this race and finish in 1st place.
Sun Valley International Raceway (75) - Win this race and finish in 1st place.
Tailfin Pass (75) - Complete necessary activities to unlock Tailfin Pass.
Tailfin Pass GP (50) - Win this race and finish in 1st place.
Tractor Tipping (75) - Successfully complete all levels of Tractor Tipping.