(BEVERLY HILLS, Calif.) -- Patrick Dempsey is branching out from Grey's Anatomy with a new TV show inspired by his passion for racing cars. Patrick Dempsey: Racing Le Mans, which will follow the actor and his team as they prepare for the 24 Hours of Le Mans endurance race in France, will premiere on the Velocity channel on Aug. 28.
Dempsey says racing cars provides him with a much different thrill than playing "McDreamy" on Grey's Anatomy.
He said Thursday at a Television Critics Association panel in Beverly Hills, Calif., "I'm not necessarily bored with the show. I'm very grateful that I have a show that's been on for 10 years. But I'm not the creator. I'm not the writer. ...This I can create, I can write."
Why is auto racing so appealing to Dempsey? He said it offered "peace" and a "purity" that's missing from his usual gig as an actor.
"You discover how much suffering you can go through, and to overcome that, how much pressure you can withstand from the outside," he said.
Dempsey admitted that he's surprised that Grey's Anatomy producers allow him to race, adding that he hopes they don't change their mind after watching Le Mans.
Copyright 2013 ABC News Radio