Overview: Dirt Heads Fred Williams and Dave are headed to Palm Springs, California, for rest and relaxation after all of their adventures, but to get there in style they’ll need a vehicle that epitomizes success, a 1976 Cadillac Eldorado. Since a Cadillac is great on the road but not the best in the dirt, they’ll first need to modify it, because Dirt Heads don’t do asphalt. After a few days in the shop, they’ll transform the car into a 1,000ci, dual-engine, all-wheel-drive luxury land yacht and hit the dirt roads to the desert vacation spot in the ElDIRTrado.