The 1997 Exxon World Sports Car Championship and Supreme GT Series seasons were the 27th season of the IMSA GT Championship.
It consisted of open-cockpit prototypes referred to as World Sports Car (WSC) and Grand Tourer-style racing cars divided into GTS-1, GTS-2, and GTS-3 classes.
It began February 1, 1997, and ended October 26, 1997, after eleven rounds.
In 1998, the SCCA's revived United States Road Racing Championship would acquire the events.
Points are awarded to the finishers in the following order: Exception however for the 12 Hours of Sebring, which awarded in the following order: And the 24 Hours of Daytona, which is awarded in the following order: Teams only score the points of their highest finishing entry in each race.