Go to the "Create New Driver Profile" screen and enter one of the following names:
All options: LETMEWIN
Aggressive cars: NUTTYNETS
Background music: TURNONTHEICE
Bouncer mode: BOINGBOINGBOING
Reverse tracks: WAVEYOURLEFTS
Escort MK1 car: MORRISMODE
Faster cars: GOFASTERSTRIPES
Ford Puma car: GARYWILDASS
Lancer Road car: EVILEVO
All tracks: GREATNEWS
All cars: ALLTHEBUTTONS
Mini Cooper S car: MINIME
Monster tires: WHEELYBIG
Shining cars: SHINYBUTTONS
Turbo boost: CURRYFORME
Reduced gravity: BOUNCYBOUNCYBOUNCY