Supersonic Car Wash's automatic tunnels and attentive technicians expunge automotive dirt on the inside and out. During each Superwash package, tri-foams exterminate outer filth and seal in escape-minded shine with clear coat wax. After polishing wheels and cleaning tires, techs vacuum the cabin, wash the windows, dust the dash, and decimate gunk civilizations growing in the cup holders. The three-to-four-hour interior and exterior detail kicks off with a full-service wash and wheel clean. As techs restore sheen to the outside façade, staffers spread healthy gobs of shampoo across the carpets, seats, and mats in order to bully out spills and erase evidence of the carpool’s last pie-eating contest. Details conclude with an interior tidying, as techs spruce up surfaces and plastics and outfit panels in conditioners.