When it comes to finding today’s best midsize sports cars, we’ll start with a perhaps unexpected source: the EPA. Better known for its fuel-economy ratings, the U.S. Environmental Protection Agency also has vehicle-size guidelines that it uses to provide information to consumers. And according to those criteria, a midsize car is one that serves up a combined passenger and cargo volume (including trunk space) of between 110 and 119 cubic feet; to put that into context, a traditional sports car like the 2016 Chevrolet Corvette offers 67 cubic feet of interior volume. Of course, the Corvette is a two-person coupe, while the entries here, to earn that “midsize” moniker, all supply two rows of seating. That means they don’t carry quite the same sports-car credibility as the Corvette and its ilk, but rest assured, these are all serious high performers that no one will mistake for a mere mainstream midsize sedan.