Like puppies and small children, cars need regular baths, plenty of attention, and no soda after dinner. Gussy up your steel pony with today's Groupon: for $30, you get two Rain-X Ultimate Spa washes at Auto Spa Etc. (a $64 value). Today's deal is good at Auto Spa Etc.'s Telegraph Road location in St. Louis and its Ellisville Towne Centre Drive location in Ellisville. Using elevated water pressure to de-soil street steeds, Auto Spa Etc.'s touchless car wash provides a thorough cleansing while minimizing the chance of surface damage to roadsters' rosy exteriors. Rain-X surface protectant, along with an application of rust inhibitor, will protect your auto from freak downpours and the unrelenting march of time, and soap technicians will hand-wipe your car's interior, expunge interior glass smudges, and spruce your tires with a healthy dose of Armor All and Wheel Brite. Auto Spa Etc. also promises a 48-hour any-reason wash guarantee, in case you get caught in a marshmallow avalanche or a mass condor migration on your way home.