If you know the name of this art car, please post a comment or email me.
It was a lot of fun to ride this thing. The vehicle was very cleverly designed and electrically powered. It was controlled with two joysticks (one for each wheel). By having each wheel turn in opposite directions, it could rotate on a dime (like a skid-steer or a tracked machinery).
Photo taken at the Burning Man 2012 festival (Black Rock Desert, Nevada).