Jeep produced an all wheel drive mountain bike for awhile. It was a promotional gimmick for their brand, they cut a deal with the inventor and re-badged it as Jeep Rubicon. They have been discontinued mostly 'cause they were cra p with cheap components. I know one guy out my way who put a motor on one who is very smart about motorizing things but even he had a lot of problems with it.
http://www.amazon.com/Jeep-Rubicon-.../ref=cm_cr_pr_product_top/175-4102024-7744666
