Enter JamSession as a user name in single player mode.
Enter Miss World as a user name in single player mode.
Enter Free Ride as a user name in single player mode.
Enter Full House as a user name during multiplayer mode to unlock almost all of the cars and tracks.
In single player mode, enter AllUCanGet as a user name.
enter teh following codes as user names in single player mode to change your status:
Status 1: Top 10
Status 2: HUIBUH
Status 3: N.I.C.E. 2
Status 4: TaxiDriver
Status 5: Halbzeit
Status 6: No Hat!
Status 7: McRace
Status 8: Jiu-Jitsu
Status 9: Goodzpeed
Switch to the driver camera. Pause the game and allow the game to idle until you see your car in the background. Resume the game and the view of your dashboard will be larger.