Unlock Speedway Reversed bonus track:
While you are at the main menu, hold L and press X, Square, Triangle,
X, Triangle, Square.
Unlock character vehicles:
Unlock Doc Hudson - Win the Gran Prix Cup 1 once
Unlock Flo - Win the Gran Prix Cup 1 once
Unlock Sheriff - Win the Gran Prix Cup 2 once
Unlock Snot Rod - Beat Snot Rod in story mode.
Unlock Wingo - Beat Wingo in story mode.
Boost - Beat Boost in story mode.
Chick - Beat Chick in story mode.
DJ - Beat DJ in story mode.
Unlock Mirror Cup:
Get all postcards in the Postcard Rally races in Story mode to
access Mirror Cup.
Unlock alternate paint colors for the indicated cars:
A different color will be unlocked depending on if you finish in 1st,
2nd or 3rd place.
Chick:
Beat the goal time for Speedway track in time trial mode.
DJ:
Beat the goal time for Radiator Cap Run track in time trial mode.
Doc Hudson:
Beat the goal time for Mesa Ravine track in time trial mode.
Lightning McQueen:
Beat the goal time for Figure 8 track in time trial mode.
Luigi:
Beat the goal time for Diesel Forest track in time trial mode.
Mater:
Beat the goal time for Desert Canyon Dash track in time trial mode.
Sally Carrera:
Beat the goal time for Radiator Springs track in time trial mode.
Sarge:
Beat the goal time for Frank's Field track in time trial mode.
Sheriff:
Beat the goal time for Ironhorse Junction track in time trial mode.
Snot Rod:
Beat the goal time for Turbine Canyon in time trial mode.
Wingo:
Beat the goal time for Interstate track in time trial mode.
