According to Newton's Fourth Law, the more you drive your car, the more debris it attracts—repelling aerodynamics, the opposite gender, and gravity itself. Smooth your horseless carriage's exterior with today's Groupon to McClane's Auto Detailing in Everett. Choose from the following three options:

• For $39, you get a wash and wax service (a $65 value).
• For $60, you get interior detailing for a mid-size car (a $120 value).
• For $19, you get an oil change (a $34.99 value).

Additional charges may apply for SUVs, vans, or XL vehicles or excessively soiled vehicles.

McClane's full-scale array of auto detailing and repair services lets motorists give their cars the royal treatment without draping them in ermine robes and printing their images on paper currency. The wash and wax renders your auto as clean as a hermetically sealed whistle. After a thorough cleansing of the body, the process cleans windows, and degreases, then dresses wheels and tires. The finishing touch comes when the entire chassis is waxed to a smooth, shiny finish that's perfect for beach vacations and high-cut Las Vegas-showgirl costumes.

A thorough interior detailing will catch every bit of errant grime and debris from each auto's tender insides by vacuuming, shampooing the carpet, wiping down the leather and vinyl, and washing the windows, along with a detailed de-gunking of air vents and door jambs. Alternately, cogs and crankshafts will be freshly anointed with an oil change, in which engine experts will replace old oil with five quarts of a sparkling new concoction to keep gears running smoothly.