[1] As the NASCAR Holdings acquisition of Panoz Motor Sports, and IMSA, had already taken place, this season is technically one of two series that formed the 43rd season of the IMSA GT Championship that dates to 1971.
Also, the August 10 event at Road America was a combined weekend with the American Le Mans Series, showcasing the organizations' recent merger.
Previous races at Homestead-Miami Speedway, New Jersey Motorsports Park, Watkins Glen Short Course and Circuit Gilles Villeneuve did not return.
Championship points are awarded based on finishing positions as shown below.
The exception is at the 24 Hours of Daytona, where a minimum of 15th place points are awarded so as not to excessively penalize a low finish when there are generally more entrants.