I know HPI has a few weird ones not sure if they would fit your car though.
Only one that MIGHT fit is the ATV-1 and unfortunately it doesn't come in one part the 3 have to be bought seperately
[link=http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXPYU2&P=7]body[/link] [link=http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXMAD9&P=7]handle bars[/link][link=http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXMAD8&P=7]rider[/link]


HPIs site with how it looks [link=http://www.hpiracing.com/products/en/7164/]painted[/link]

Its for the e-savage but they claim it fits almost all MTs and could maybe be made to fit your application