A hard-edge version of the seventh-generation Corvette Stingray that was introduced in 2014, the Chevrolet Corvette Z06 (chevrolet.com) delivers performance comparable to that of sports cars built by Lamborghini, Ferrari, McLaren, and Porsche. And with a starting price of $79,000, it does so at a fraction of the cost. “America’s supercar,” as General Motors calls the Z06, is powered by a 6.2-liter supercharged aluminum V-8 that generates 650 hp and 650 ft lbs of torque. The engine can be pair…