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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:
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 ...
All American Grand Touring (AAGT) [10] was maintained by IMSA between 1975 and 1989. [11] These cars were All-American, V8-powered, used a maximum of 5 forward gears, and used a steel tube frame (similar to the type used in the SCCA Trans-Am Series), and were designed to compete against heavyweight European manufacturers and machinery of the time, such as Porsche and BMW, who were dominating ...
Pages in category "IMSA GT Championship seasons" The following 28 pages are in this category, out of 28 total. This list may not reflect recent changes. 0–9.
The 1979 Winston GT season was the 9th season of the IMSA GT Championship auto racing series. It was a series for GTX class Group 5 cars and GTO and GTU class Grand tourer cars. It began February 3, 1979, and ended November 25, 1979, after fifteen rounds.
The track was a part of the championship for every season of the IMSA SportsCar Championship since its inception in 2014, except for 2020 due to the COVID-19 pandemic. [ 4 ] On December 1, 2022, it was announced that the Rolex 24 Qualifying Race had been canceled for 2023, with the race reverting to a traditional qualifying format.