Auto shows are the safest places to practice pretend engine noises without attracting feral lawnmowers in heat. Rev up with today's Groupon: for $5, you get admission to the Motor Trend International Auto Show-Baltimore at the Baltimore Convention Center (up to a $10 value). Groupon customers may choose to attend any one of four dates from February 10 through February 13.

Motor Trend Auto Shows reigns supreme as the nation’s largest auto-show producers, pairing the latest fuel-drinking models from major manufacturers alongside Americana classics. Baltimore’s vehicular event showcases the 2012 Ford Focus and the 2012 Chevrolet Sonic, as well as preproduction 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 Camaro, Buick LaCrosse, or GMC Terrain.

Admission to the Motor Trend International Auto Show is free for kids 6 years old and younger, in honor of their role as America's most prolific toy car drivers. Children ages 12 and younger also enter free with a paying adult on Sunday, February 13, coinciding with celebrity appearances from John Davis, host of Maryland Public TV's MotorWeek, Baltimore Orioles mascot "The Oriole Bird," Spiderman, Iron Man, and their relentless PR agents. Customers also receive a free, one-year subscription to Motor Trend magazine, allowing guests to draw hearts around photos of their favorite makes and models.

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