At the personal options menu, enter the following name and racing team:

Name		Team	Effect
r petterson	Swe   	All cars
Supercars	Grem  	Overhead view
Demon		Grem  	Bouncing cars
g-ride		West  	L.A. style suspension
Buzz Aldrin	NASA  	No gravity
Ignition	UDS   	Ignition mode
Ramlosa		H2O   	Water mode   - requires 3D accelerater card
Lemmy		Ace   	Hell mode    - requires 3D accelerater card
Avenger		Zx    	Avenger mode - requires 3D accelerater card

Thanks to Revolution readers Eliminator, Desert Fox, Chris, and Berke Berberoí°lu!