On this episode of Head 2 Head presented by Tire Rack (http://www.tirerack.com), hosts Jonny Lieberman and Randy Pobst take a look at two entry-level convertible supercars, the Audi R8 V10 Spyder and the Porsche Turbo Cabriolet. These are the base versions. The brakes are steel, the engines are in a relatively relaxed state of tune, and the suspensions have been dialed down a notch or two. Still, with each convertible pumping out 540 hp and sporting seven-speed, dual-clutch transmissions that send power to all four wheels, these two aren’t exactly no frills. Pobst and Lieberman put the two through their paces, on a winding open road and a racetrack. Which superconvertible is best? Watch and find out!