The 2023 IMSA SportsCar Championship was the 53rd racing season sanctioned by the International Motor Sports Association, which traces its lineage back to the 1971 IMSA GT Championship. It was also the tenth season of the IMSA SportsCar Championship since the merger between the American Le Mans Series and the Rolex Sports Car Series in 2014, and the eighth under the sponsorship of WeatherTech. The 2023 season marked an overhaul season for the championship, with a change in class structure and a new race on the season calendar at Indianapolis Motor Speedway. The championship began with the 24 Hours of Daytona on January 28 and concluded with the Petit Le Mans on October 14 after 11 races.
The Porsche 963 (pictured at the 2022 Goodwood Festival of Speed) is one of the prototype race cars that are allowed to compete under IMSA’s new GTP class. It complies with the LMDh regulations.
Indianapolis Motor Speedway returned to the championship's schedule for the first time since 2014.
The 2024 IMSA SportsCar Championship is a motor racing championship, which is the 54th racing season sanctioned by the International Motor Sports Association and traces its lineage back to the 1971 IMSA GT Championship. It is also the eleventh season of the IMSA SportsCar Championship since the merger between the American Le Mans Series and the Rolex Sports Car Series in 2014, and the ninth under the sponsorship of WeatherTech. Following a change in class structure for the 2024 season, the IMSA SportsCar Championship saw a major expansion of its full-time grid across all of its classes.
Lamborghini will make their debut in the top class of the championship with the Lamborghini SC63 (pictured on display at the 2023 Goodwood Festival of Speed).