2006 Rolex Sports Car Series
The 2006 Rolex Sports Car Series season was the seventh season of the Grand-Am Rolex Sports Car Series, and the fifth season under the sponsorship of Rolex.
It began on January 28 with the 24 Hours of Daytona, and ended on September 2 with the Discount Tire Sunchaser at Miller Motorsports Park. The championship was competed with Daytona Prototypes (DP) and Grand Touring (GT) class cars only, for the second successive season.
Starting with the VIR 400, this season saw the introduction of qualifying races to set the field for the main race. Controversially, these races awarded the same points as a main race, despite being set at just 30 minutes (or 50 miles) in length. With no qualifying session, starting positions for a qualifying race were determined by speeds during a previously designated practice session. After just three unsuccessful runnings, the format was discontinued in the aftermath of a major five-car crash at Phoenix International Raceway.