Auto shows are the safest places to practice pretend engine noises without attracting feral lawnmowers in heat. Rev up with today's Groupon: for $4, you get admission to the Pennsylvania Auto Show from January 27 to January 30, 2011 at the Pennsylvania Farm Show and Expo Center (up to an $8 value). Founded in 1984, Motor Trend Auto Shows reigns supreme as the nation’s largest auto-show producer, pairing the latest fuel-drinking models from major manufacturers alongside Americana classics. Harrisburg’s vehicular event showcases the new or redesigned 2011 Chevrolet Volt, Jaguar XJ, and more, as well as pre-production 2012 metal carriages, alternative fuel four wheelers, and Motor Trend award winners. Cowhide enthusiasts can run their cattle prods along supple leather interiors, while intrepid speedsters can demonstrate their K-turn prowess in a Chevrolet, Buick, GMC, or Subaru test-drive.

Admission to the Pennsylvania Auto Show is free for kids 6 years old and younger, in honor of their role as America's most prolific drivers. Children ages 12 and under also enter free with a paying adult on Sunday, January 30, 2011, coinciding with celebrity appearances from SpongeBob SquarePants, Spider-Man, Iron Man, and their relentless PR agents. Customers also receive a free, one-year subscription to Motor Trend magazine, allowing guests to wallpaper their bathrooms with the excitement of the autoshow.

_ Though Motor Trend Auto Shows sometimes features a discounted price online, this Groupon still offers the best deal available._