They arrive in parts -- on the back of semi-trucks or hitched to trailers -- after being shuttled up America's Interstate 80 highway to Nevada's Black Rock Desert, the site of the annual Burning Man festival.

Here, on the region's salt flats, the individual pieces -- steel, wood, papier-mâché and a myriad of other materials -- are assembled into one of the festival's most striking pieces of art: Mutant Vehicles.
These often spectacular cars would fail any standard road test, but must pass the criteria set by Burning Man's Department of Mutant Vehicles (DMV) to be granted a festival license.
This means they must "be completely mutated -- showing little or none of the original base vehicle," according to the DMV, who strive to ensure a "balance" of mutated machinery.