On this episode of Head 2 Head presented by Tire Rack, Jethro Bovingdon and Jonny Lieberman head to Scotland to check out two cars that straddle the line between sports car and supercar, the Aston Martin Vantage and the Audi R8 RWS. The Vantage employs the first turbocharged V-8 in Aston’s more than 100-year history. Built by AMG, but tuned by Aston Martin, the twin-turbo, 4.0L V-8 produces 503 horsepower. RWS stands for “Rear Wheel Series” and this R8 is the first rear-wheel-drive vehicle in Audi’s history. Lighter, more agile, yet a bit less powerful than the R8 V10 Plus, the RWS still makes a healthy 540 horsepower from its 5.2L V-10 engine. Both the Aston and the Audi are wonderful in their own right, as well as great alternatives to a Porsche Turbo. However, one car must win. Which is best? Watch and find out!