2011 Pirelli World Challenge
The 2011 Pirelli World Challenge season was the 21st season of the Sports Car Club of America's World Challenge series. It was the first season under the Pirelli sponsorship. Championships were awarded in three classes: GT, GTS, and Touring. The season began at St. Petersburg, Florida, on March 26 ended after 12 rounds at Road Atlanta on September 30. All rounds were covered on television by Versus.
Schedule
Part of the schedule was released December 1, 2010. The final two rounds were announced February 2, 2011. Watkins Glen, Exhibition Place, and Virginia International Raceway were not retained. Infineon Raceway returned to the schedule after a five-year absence. Laguna Seca and Road Atlanta returned after a one-year absence.| Round | Date | Circuit | Location | Supporting |
| 1 | March 26 | Streets of St. Petersburg | St. Petersburg, Florida | IndyCar Series |
| 2 | March 27 | Streets of St. Petersburg | St. Petersburg, Florida | IndyCar Series |
| 3 | April 18 | Streets of Long Beach | Long Beach, California | IndyCar Series / American Le Mans Series |
| 4 | April 30 | Miller Motorsports Park | Tooele, Utah | Stand-alone event with NASCAR West Series |
| 5 | May 21 | Mosport International Raceway | Bowmanville, Ontario | Stand-alone event |
| 6 | May 22 | Mosport International Raceway | Bowmanville, Ontario | Stand-alone event |
| 7 | August 6 | Mid-Ohio Sports Car Course | Lexington, Ohio | IndyCar Series / American Le Mans Series |
| 8 | August 7 | Mid-Ohio Sports Car Course | Lexington, Ohio | IndyCar Series / American Le Mans Series |
| 9 | August 27 | Infineon Raceway | Sonoma, California | IndyCar Series |
| 10 | August 28 | Infineon Raceway | Sonoma, California | IndyCar Series |
| 11 | September 18 | Mazda Raceway Laguna Seca | Monterey, California | American Le Mans Series |
| 12 | September 30 | Road Atlanta | Braselton, Georgia | American Le Mans Series |
News
On January 3, 2011, Cadillac announced their return to the series after a four-year absence.Pirelli became the sole tire supplier for the 2011 season. The series used slick racing tires, rather than the street-legal treaded tires used in previous seasons.
Brimtek Motorsports announced that they would be fielding a Volkswagen GTI in the touring car class for 2011.
It was announced that Mike Skeen would be driving a Chevrolet Corvette for CRP Motorsports in the GT class.