Somerville Car Wash de-gunks autos sporting grime-soaked exteriors, delivering sparkling sedans and smudge-free trucks. A quintet of gold wash treatments will put a smile on each car's grill and make it forget the time it was covered in plastic wrap while napping. Soft cloths gently lure exterior dirt particles from tucked-away hiding spots, and high-pressure streams blindside unsuspecting stains. Next, blowers work in tandem with hand towels to soak up every drop of moisture, delivering a streak-free finish. Rust inhibitors help ward off salt from crashing into pretzel stands, and a gentle massage of triple-foam paint conditioner detangles each car's wispy locks. Finally, twin coats of spray-on sealer wax and polishing wax shine metallic hide and provide a formidable line of defense against incontinent seagulls. Groupon buyers are also entitled to half off a paint-sealant treatment when purchased online.