Snow Mobile Script!

I already have a build for a neat snow mobile i have, and atm i'm using the basic vehicle script thing tht Andrwe Linden wrote up... my problem is i need it modified so that it handles more like a snow mobiel and less liek a motorcycle. If you think you can help please IM me in game... by the way, if someone could help me make if shoot particles from its exhaust pipes (already have the general gist of how to do it but i need someone to write up the script =P)