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 2011 Virginia Motor Trend International Auto Show (up to a $9 value), taking place March 11–13 at the Greater Richmond Convention Center. Admission to the auto show is free for kids 6 years old and younger, in honor of their role as America's most prolific drivers. Children age 7–12 are admitted for $3 without a Groupon and also enter free with a paying adult on Sunday, March 13.

Founded in 1984, Motor Trend Auto Shows reigns as one of the nation’s largest auto-show producers, pairing the latest fuel-drinking models from major manufacturers alongside Americana classics. Richmond’s vehicular event showcases new, redesigned, and preproduction 2012 Ford Focuses, Buick Veranos, and Chevrolet Sonics, plus alternative-fuel four-wheelers, Motor Trend award-winners, and a Ferrari collection. Cowhide enthusiasts can run their cattle prods along supple leather interiors, and intrepid speedsters can demonstrate their K-turn prowess in a Chevrolet, Buick, or GMC test drive. Customers also receive a free, one-year subscription to Motor Trend magazine, allowing guests to wallpaper their bathrooms with the excitement of the auto show.

Saturday, March 12, will feature King Robota Robot, while Sunday, March 13, is kids' day, featuring free admission for kids 12 and under as well as a celebrity appearance from SpongeBob SquarePants and his relentless PR agents.

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