Water thrives when under pressure, much like spelling-bee finalists and fast-food drive-thru operators at the Indy 500. Unleash pressurized power with today's Groupon to Showroom Auto Spa. Choose between the following options:

• For $49, you get a Showroom wash and wax (a $99.99 value).
• For $66, you get a Showroom wash and wax with Aquapel treatment (a $139.99 value).

Showroom Auto Spa's agile technicians reanimate sullied car shells with a suite of power-cleaning, hand-waxing, and buffing treatments. During the 120- to 150-minute service, staffers prep the exterior paint with a power clean, then enlist a tag team of fallout remover, clay bar, and solvent cleanse to sweep contaminants from the surface and send them to star as villains in soap commercials. After a second rinse to pummel any lingering gunk, techs armor the car's manicured complexion in a layer of high-grade carnauba hand wax, which huddles protectively around the revitalized finish. Cleaners then clean and brush the wheels and spruce up the tires with dressing and conditioner, and punctuate the process with a window buffing.

The wash and wax also includes interior services, such as a carpet vacuum, floor mat power cleaning, and a light wipe down. During the Aquapel treatment, techs dress windshields in water-repelling treatments that improve visibility for up to six months during inclement weather and water-balloon attacks from moody clouds.