Sony PSP :: Cars Cheat Codes

Speedway Reversed bonus track
At the main menu, hold L and press X, Square, Triangle, X, Triangle, Square to unlock the Speedway Reversed bonus track.

Race as Bosses
Defeat DJ, Snot Rod, Wingo, Boost, or Chick in their Boss race in Story mode to unlock them.

Race as Doc Hudson
Win the Gran Prix Cup 1 to unlock Doc Hudson.

Race as Sheriff
Win the Gran Prix Cup 2 to unlock Sheriff.

Alternate paint jobs
Finish in first, second, or third in Time Trial mode on the indicated track to unlock an alternate paint job for the corresponding car. Note: You will unlock a different paint job for finishing in first, second, and third, for a total of three different paint jobs for each car.

Chick: Speedway track

DJ: Radiator Cap Run track

Doc Hudson: Mesa Ravine track

Lightening McQueen: Figure 8 track

Luigi: Diesel Forest track

Mater: Desert Canyon Dash track

Sally Carrera: Radiator Springs track

Sarge: Frank's Field track

Sheriff: Ironhorse Junction track

Snot Rod: Turbine Canyon

Wingo: Interstate track

Shortcut in Turbine Canyon
The first shortcut is found where there is about five or six obstacles. Jump or drive over them.