sorry man it is sold but if you really want to convert I can let you know what parts you need as it may be cheaper than buying a ready made conversion kit from either BMS or GS cycles. If not sold I would have shipped sorry
The issue of car tires are one of the most heated debates going on this site. While most owners defend them, I wouldn't recommend one. Mine is purely for shock value and at best handles rather squirreley. Do a search on "Car Tire" for more info than you need to know!