The 2013 Rolex Sports Car Series season was the fourteenth and final season of the Grand American Road Racing Association's premier series, before merging up with the American Le Mans Series in 2014. It began on January 26, with the 51st running of the 24 Hours of Daytona.[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.