Developers of the proposed Auto Spa Express Car Wash at the planned Bel Air Costco detail their approach to traffic.

Best budget car wash kit: Griot’s Garage Wash and Detail Sampler Kit The best car wash kits are equally effective at wiping away layers of pollen as they are at freeing tires from caked-on dirt.

Car washes often offer extras. We talked to paint experts, car wash owners, professional detailers, and soap manufacturers to find out which ones you need—and where to save your money.