At Arlington Raceway, mud-caked vehicles roar around banked curves and fly down straightaways with the same vigor that has attracted spectators for more than 30 years. Seven different classes of wheeled racers compete every Saturday from May to September, from stock cars and sprint cars to motorized rollerbladers. After packing arms with salty popcorn (a $1 value) and frosty brews (a $2.50 value each) during a quick snack-bar run, spectators stake out general-admission seating (a $10 value each) before cheering on International Motor Contest Association–sanctioned drivers as they skid around the half-mile track. Set back speedway clocks on July 23, as vintage racers descend on the track for a symposium on antique derring-do and the impracticality of in-car Victrolas. On August 20, artful auto tamers create lifelike burnt-rubber sketches while speeding through intricate turns on Arlington Raceway's autocross course. Though not included in today’s Groupon, pit passes ($25) unlock access to the inner workings of the speedway, allowing spectators to take up-close ganders at precision autos or feed sugar cubes to their favorite drivers.