Dario Franchitti drives the Porsche 918 Spyder at Goodwood

With four IndyCar championships and three victories at the Indianapolis 500, Porsche enthusiast Dario Franchitti is superbly qualified to drive the Porsche 918 Spyder at the Festival of Speed. Listen to his thoughts on the ultimate Porsche road car, and watch him launch it up the Goodwood hill in this clip. For Porsche 919 Hybrid stories, and more from Goodwood 2015, visit our #PorscheLive stream at: