Liquid Highway is the first car wash of its kind in the Carolina's to offer more choices and more flexibility for your car care needs. The Liquid Highway Flex Serve format offers everything from a $10 Express Exterior drive-through wash that takes four minutes to the deep clean Orbital Hand Wax Extreme, which removes deeper scratches, oxidation and water stains. Customers love that detailing services and à la carte items can be added to any car wash service.