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The following is a list of circuits that have hosted International Motor Sports Association (IMSA) SportsCar Championship races from the inaugural season in 1971 up to and including the 2024 season. The list includes the combined IMSA history of races held as part of the IMSA GT Championship , the Grand-Am Rolex Sports Car Series , the American ...
The 2025 IMSA SportsCar Championship (known for sponsorship reasons as the 2025 IMSA WeatherTech SportsCar Championship) is an ongoing motor racing championship and the 55th racing season sanctioned by the International Motor Sports Association, which traces its lineage back to the 1971 IMSA GT Championship.
The IMSA SportsCar Championship, currently known as the IMSA WeatherTech SportsCar Championship under sponsorship, is a sports car racing series based in the United States and Canada and organized by the International Motor Sports Association (IMSA). It is considered the pinnacle of sports car racing in North America, attracting top-tier ...
1981 IMSA race at Road Atlanta featuring GTO, GTU, and GTP cars [6] Robin McCall in the Hoerr Racing GTO Oldsmobile (1987) The 1971 season was the first racing season, and lasted six races. The early years of the series featured GT cars, similar to the European Group 2 and Group 4 classes, divided into four groups:
Total prize purses, year-end point funds and manufacturer contingency awards in 1991 amounted up to $1 million. As required by the sponsor, all cars were required to use its own Firehawk SZ or Firehawk SV tires which could be shaved to racing depth, or the all-season Firehawk GTX. Bosch and Kendall Oil were also associate sponsors.
The 2025 IMSA VP Racing SportsCar Challenge season will be the third season of the IMSA VP Racing SportsCar Challenge after being established in 2023 as a replacement for the IMSA Prototype Challenge. The season will begin on January 20 at Daytona International Speedway and will conclude on October 19 at Road Atlanta. After IMSA's removal of ...
The 1978 Camel GT Challenge season was the 8th season of the IMSA GT Championship auto racing series. It was the first year of the new GTX class, which allowed for Group 5 cars to compete. The GTO and GTU class Grand tourer cars remained from before.
The 1982 Camel GT Championship season was the 12th season of the IMSA GT Championship auto racing series. It was the first year of the GTP class, which combined the previous GTX class of Group 5 cars and prototypes.