The GT3 Class is open to all FIA-GT3 homologated cars. GT3 cars are the fastest globally active GT cars, racing in all corners of the world and at all levels, from the World Endurance Championship to local championships.

The GT3 Class features thoroughbred race cars from brands such as Aston Martin, Audi, Bentley, BMW, Chevrolet, Ford, Ferrari, Honda, Lamborghini, Lexus, McLaren, Mercedes-AMG, Nissan, and Porsche, all based on road going super cars. The cars are balanced through a Balance of Performance method, which guarantees equal performance between the cars and means that the best drivers and teams will make the difference in the race.

The 992 Class is open to the latest generation of the Porsche 911 GT3 Cup, the 992. The Porsche 911 GT3 Cup has been a global force in single make Porsche series for almost 40 years, and the latest generation also makes for a fantastic endurance race car.

Teams are split between PRO and AM, which are balanced to each other through an adjusted fuel flow rate. All cars in the 992 Class must follow Porsche Carrera Cup Germany regulations, with adjustments allowed to prepare the car for an endurance race.

The GTX Class accepts all GT cars with a performance around GT2 level. A wide range of cars is eligible for this class. The class accepts, among others, the following cars:

• GT2-homologated cars
• Ferrari Challenge cars (458, 488, 296)
• KTM X-BOW GTX
• Lamborghini Huracán Super Trofeo (any generation)
• Ligier JS P4
• MARC I, II & GT
• McLaren Artura Trophy
• McLaren 570s Trophy
• Nova NP02
• Porsche 911 GT3 Cup (pre-992)
• Vortex 1.0 & 2.0

The GT4 Class is open to all SRO-GT4 homologated cars. GT4 cars are a popular formula for the amateur racer and provide a competitive platform with more accessible power and handling characteristics.

The GT4 Class features race prepared sports cars from brands such as Alpine, Aston Martin, Audi, BMW, Ford, Ginetta, KTM, Lotus, McLaren, Mercedes-AMG, Nissan, Porsche, and Toyota. The cars are balanced through a Balance of Performance method, which guarantees equal performance between the cars and means that the best drivers and teams will make the difference in the race.

The TCE Class is open to a range of touring and GT cars, which a performance ceiling of GT4 cars. Within the TCE class, the cars are divided based on their performance into the TC Class, TCR Class, and the TCX Class. The TCE class accepts, among others, the following cars:

• TCR-certified cars
• Alpine A110 Cup
• BMW M2 CS Racing
• Ginetta G50/G55/G56
• Lamera Cup
• Ligier JS2 R
• Porsche 718 Cayman GT4 Clubsport (981 & 982)