On this episode of Head 2 Head presented by Tire Rack, it's a clash between the two most capable cars from the USA and Japan: the Chevrolet Corvette Z06 and the Nissan GT-R Nismo. Both of these juggernauts pack massive horsepower, from 600 to 650 hp, and incredible racetrack capabilities with wide and sticky tires, but which one is the top performer? Through Motor Trend's standard gamut of tests, a drive on the road, and a day at the racetrack with Randy Pobst, we find out.