The IMSA WeatherTech SportsCar Championship features two styles of cars – Prototype, which showcases the latest automotive technology and are uniquely designed for the racetrack, and GT, which is based on road-going production models. These two styles of cars make up the series’ five classes – Grand Touring Prototype (GTP), Le Mans Prototype 2 (LMP2), Le Mans Prototype 3 (LMP3), GT Daytona Pro (GTD PRO) and GT Daytona (GTD).

To help fans follow the on-track action, the WeatherTech Championship uses a Leader Light System. It allows fans to easily identify the position of each car in its respective class. The position of the car is displayed on an LED panel mounted on the side of the car and the color of the LED number corresponds with the class. For instance, an illuminated LED red number 5 on a GTD PRO style car means that car is in 5th position in the GTD PRO class.


Grand Touring Prototype (GTP)
The newest and most technologically advanced Prototype race car takes to the track for the first time in 2023, featuring a common hybrid powertrain for all entries that takes kinetic energy gained in braking and stores it in batteries for later use when needed. Four global automotive manufacturers – Acura, BMW, Cadillac and Porsche – are entered in the class. Each manufacturer developed its own unique internal combustion engine and bodywork styling to take on this cutting-edge challenge.


Le Mans Prototype 2 (LMP2)
The Le Mans Prototype 2 (LMP2) is a closed-cockpit car developed by four approved constructors. In addition to the IMSA WeatherTech SportsCar Championship, LMP2 cars are eligible to compete in other global series such as the FIA World Endurance Championship, which includes the prestigious 24 Hours of Le Mans.

Le Mans Prototype 3 (LMP3)
The Le Mans Prototype 3 (LMP3) is an entry-level closed-cockpit car developed by four approved constructors. In addition to the IMSA WeatherTech SportsCar Championship, LMP3 cars are also eligible to compete in the IMSA VP Racing SportsCar Challenge – one of IMSA’s driver development series – as well as other international series such as the European Le Mans Series (ELMS).

GT Daytona Pro (GTD PRO)
GTD PRO, which debuted in 2022, include race cars built to FIA GT3 technical regulations and offers the opportunity for factory teams and driver lineups to compete in the class. Manufacturers competing in this class in 2023 include Aston Martin, Chevrolet, Ferrari, Lamborghini, Lexus, Mercedes-AMG and Porsche.

GT Daytona (GTD)
The GT Daytona cars are enhanced (not defined by) technology and utilize the global FIA GT3 specification. The GTD class consists of cars from leading manufacturers such as Acura, Aston Martin, BMW, Ferrari, Lamborghini, Lexus, McLaren, Mercedes-AMG and Porsche.