Ask actor Patrick Dempsey all about racing his Porsche at Le Mans

You may know Patrick Dempsey as Dr. McDreamy from Grey's Anatomy, but did you also know he was the co-driver of the Porsche 911 GT3 that came in fourth place in his class at the 24 Hours of Le Mans? Or that he's the star of a new documentary all about the race? Ask him all about it right now. » 10/02/13 10:09am 10/02/13 10:09am