The race will be the first in North America for UPS Porsche Junior Team drivers Lance David Arnold and Jan Seyffarth of Germany. They're new to the Rolex 24, but they'll be at home behind the wheel of the No. 17 Porsche 911 GT3 Cup car. They have already completed a full season driving the Porsche 997-based car in the Porsche Carrera Cup Deutschland.

Veterans Johnny Mowlem of London, England, and David Shep of Caledon, Ont., will share their track knowledge with the young pair. Mowlem has earned a GT class win, two overall podiums and three GT podiums in six Rolex 24 races. Shep joined his Doncaster Racing/SAMAX co-drivers on the GT podium at last year's Rolex 24 - his third podium in three series on the 3.56-mile Daytona International Speedway infield road course.

Bryan Sellers of Sacramento, Calif., returns to SAMAX after an impressive debut in 2005. In his first sports-car start, he put the team's Porsche on the GT class pole for the Rolex Sports Car Series race at Homestead (Fla.) Miami Speedway.

As previously announced, SAMAX will also prepare the No. 71 Doncaster Racing/SAMAX Porsche for drivers Dave Lacey of Toronto, Brent Martini of Laguna Beach, Calif., and father and son Greg and Mark Wilkins of Toronto. Doncaster Racing is aiming for the top, after class podium finishes at the Rolex 24 in 2004 and 2005. (Doncaster announcement follows)