The Maserati GranTurismo MC Trofeo World Series will make its North American debut at the raceway in Sonoma, Sept. 21-23.

The series will feature a full lineup of talented drivers, including actor and accomplished racecar driver Patrick Dempsey. Best known for his role on Grey’s Anatomy, Dempsey has competed in a variety of series in the United States, including the Grand-Am Rolex Sports Car Series and the American Le Mans Series. He has also competed in t he 24 Hours of Le Mans.

A lifelong auto enthusiast, Dempsey’s first experience behind the wheel of a racecar was in a three-day Skip Barber Racing School course that was a gift from his wife. He has been ascending into the upper ranks of both North American and international sports car racing ever since. Highlights have included a pair of podium finishes in his debut season of ALMS Prototype 2 this year and a third-place GT class result in the 2011 Rolex 24. 

Another celebrity will also take the field this weekend in the Maserati Trofeo World Series in Greg Tracy.

As one of the elite Team Hot Wheels drivers, Tracy set a Guinness Book of World Record when he performed the Hot Wheels Double Loop Dare at the 2012 X Games. The iconic seven-story tall orange track allowed the kid in all of us to experience what 7G's and a seven story loop would be like in real time and in real life.

Tracy is also one of the top stuntmen in Hollywood. Tracy has been providing stunts for movies and commercials since 1991, with stunts in blockbuster movies such as: Act of Valor, The Avengers, GI Joe, Bourne Ultimatum, Wanted, Talladega Nights and The Fast and Furious. Greg Tracy, won the elite World Stunt Award for his work in the Bourne Ultimatum.  Even as his stunt career was taking off, that wasn't enough excitement. Tracy decided that he needed to race in one of the most extreme racing events in the world – The Pikes Peak International Hill Climb, which boasts 156 harrowing turns and drop-offs that fall up to six thousand feet down sheer rock cliffs. He is a six-time champion of the event.

Dempsey and Tracy will join other drivers this weekend in the Maserati Trofeo World Series. The series has a new set-up for 2012, featuring an aerodynamic body-kit and reduced weight. All the cars that appear in the Trofeo series are strictly derived from production road Maserati’s and are made track-ready by a dedicated team of technicians to ensure that the drivers race on a level playing field.  The grid is full with 24 cars and  includes a significant number of U.S.-born drivers.

The series will run main events on Saturday and Sunday of race weekend.