JL421 Badonkadonk   (link)

http://www.jalopnik.com/cars/novelties/who-put-the-donk-in-the-jl421-badonkadonk-029757.php
The JL421 Badonkadonk, aka “The Donk” is a “land vehicle and battle tank” created by outer-limits design firm, NAO Design for purposes unknown to Burning Man non-attendees. With the profile of a hand iron from the late 19th century, or an upside-down cabin cruiser, the Donk can transport up to five people, either inside or on the roof, at speeds of up to 40mph. It’s powered by a 6hp air-cooled engine and includes accent lighting and a 400 watt sound system