Yvon's Supersonic Car Wash, based in Lewiston, is one of the largest self-service car wash companies in the state of Maine. Yvon's features locations in Auburn, Bethel, Mechanic Falls, Rumford, Sabattus, Saco, and three locations in Lewiston. From our start as a single self-service car wash more than four decades ago, we quickly grew to offer specialized reconditioning for family cars, boats, motorhomes, and motorcycles.