IMSA VP RACING SPORTSCAR CHALLENGE THE CLASSES
The IMSA VP Racing SportsCar Challenge is a multi-class sprint racing series debuting in 2023. The lead LMP3 class features entry level, closed cockpit prototype race cars, while the production-based GSX class will utilize race cars built to international GT4 technical regulations. Each of the six event weekends on the 2023 VP Racing SportsCar Challenge schedule will include a pair of 45-minute sprint races, and drivers must be rated either Bronze or Silver on the FIA Driver Categorization List. Click here for the Official IMSA Sporting Regulations.
Le Mans Prototype P3
The Le Mans Prototype 3 (LMP3) is an entry level closed cockpit car developed by four approved constructors. In addition to the IMSA VP Racing SportsCar Challenge, LMP3 cars are also eligible to compete in the IMSA WeatherTech SportsCar Championship as well as other international series such as the European Le Mans Series (ELMS).
Grand Sport X
The GSX class uses production-based race cars internationally homologated under SRO GT4 regulations. Engines are tuned to produce between 400 and 450 horsepower and the cars are capable of top speeds in excess of 160 miles per hour. Competition is equalized by adjustments to fuel-tank capacities, ride height, power and weight. Eligible cars include the Aston Martin Vantage GT4, Audi R8 GT4, BMW M4 GT4, Chevrolet Camaro GT4.R, Ford Mustang GT4, McLaren 570S GT4, Mercedes-AMG GT GT4, Porsche 718 Cayman GT4 Clubsport and Toyota Supra GT4.
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