If you live in Lansing, MI you have to check out showroom shine they have a car tunnel. Your car goes down the track and they have stations for the hand washers. no rain suits needs has power rinse and all check it out. http://www.showroomshine.com . They also take care of all your Java and reading needs while your car gets a bath.
follow this link he has a little movie showing the process.
http://www.showroomshine.com/site2_Star%20Club%202.htm