On this special, 100th episode of Head 2 Head presented by Tire Rack, Jonny Lieberman and Jethro Bovingdon take a look at two of the best sports cars to ever hail from Germany, the AMG GT R and the Porsche 911. Unexpectedly perhaps, the two cars could not be more different. The AMG sports a twin-turbo, snarling V-8 seated in front of the driver and powering the rear wheels via a seven-speed twin-clutch transaxle. The Porsche, on the other hand, has a naturally flat-six screamer stuffed in its rear, powering the back wheels through a mid-mounted six-speed manual. Bovingdon and Lieberman take the two cars to the road, a test track, and a racetrack, and along with pro driver Randy Pobst, figure out a winner. Which is it? Watch and find out!