At Genie Car Washes, nearly a half-century of business success lends an air of assured experience to locations recently upgraded with $500,000 in renovations. A large staff efficiently shuttles vehicles through a wash tunnel cushioned with foam pads designed to leave exteriors unscratched. Patrons can choose between one of six multistep car washes, or cherry-pick à la carte services such as leather conditioning, engine cleaning, and headlight restoration. Detailing packages assemble extra touches that subject disheveled cars to white-glove once-overs including trunk cleanings and carpet steam cleanings.