Test Drive Codes -

Bonus cars:
Pick the San Francisco Drag Race and use the Dodge Concept Viper and when you get a  new time record, submit the name SOUNDMAX in 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.

 

G4 TV car:
Choose the San Francisco Drag Race and set a new time record. Then submit the name KQXYKGVY in the high score screen.