Create a new driver called "hot wheels". When you go into the game you will have a Porsche 911 Twin Turbo available to race.
Create a new driver called "yraGyraG". All of your cars will now have the physics of a 933.
Create a new driver called "Dakar". You will now drive with rally physics.
Create a new driver called "fuzzyfuz". There will now be cops on most tracks in quick race mode.
Create a new driver called "Gulliver". When you race you will all be very small R/C cars.
Create a new driver called "Smash Up". You will now be racing in demolition derby mode.
Create a new driver called "fetherw8". Now all the cars will be heavier.