This is the "Fusion" art car, created by Henry Chang, an hyper engineered fantasy dragster with 16 mufflers! Looks like it is entirely made of stainless steel, except for the tires rubber.
Called "Fusion" because the centerpiece was a fusion chamber at Las Alamos. Probably still slightly radioactive... wow!
Photo taken at the Burning Man 2012 festival (Black Rock Desert, Nevada).