All cars and tracks
At the main menu, press Right(2), Left, Square, Up, L2(2), R1 to unlock all cars and tracks.

Bonus cars
Unlock all of the other cars in the game. Select the San Francisco Drag Race and use the Dodge Concept Viper to set a new time record. Then, enter "SOUNDMAX" as a name at the high score screen. The Jaguar XK-R "SoundMAX SPX", Jaguar XK-R "Analog Devices", and the Aston Martin DB7 "SoundMAX SPX" will be unlocked in all modes except for story mode.

Ending bonuses
Win all races in story mode to unlock the San Francisco tracks in single race and cop chase mode, as well as the Chevrolet Corvette L-88, Jaguar XK-R, Lotus Espirit V8, and Lotus Elise.

Dodge Viper GTS
Win the track 27 race in story mode to unlock the Dodge Viper GTS.

Dodge Viper GTS-R Concept
Defeat Clark in all races to unlock the Dodge Viper GTS-R Concept. Alternately, win the track 45 race in story mode.

Ford GT
Defeat Vasily in all races to unlock the Ford GT.

Jaguar XJ220
Win the track 33 race in story mode to unloc the Jaguar XJ220.

Shelby Cobra 427 SC
Win the track 5 race in story mode to unlock the Shelby Cobra 427 SC.

Skeeter's Chevrolet Chevelle
Win the track 26 race in story mode to unlock Skeeter's Chevrolet Chevelle.

Ford Mustang
Win the track 7 race in story mode to unlock the Ford Mustang.

Reeses Chevrolet Camaro
Win the track 9 race in story mode to unlock the Reeses Chevrolet Camaro.

Pong mini-game
Use the D-pad to play the Pong mini-game while the game is loading.