No Collisions
Drag Race a race and then Quit. Then, a screen will come up saying you got a high score. Type your name as "davon".

Cheats
For extra cars to choose from, firstly go to single player race, then choose drag race. Choose afast car for yourself eg. the JAG, and a slow one for the computer. Win the race then choose quit. When it prompts you to enter your name in the high score list, type in SAUSAGE.

For all the tracks in reverse direction, follow the directions above, except type on KNACKED
You can now save these to your memory card and always have these optiones.