It is a series for Grand Touring style cars broken into two classes based on power and manufacturer involvement, called GT1 and GT2.
Invitational G2 and G3 classes are also allowed to participate, but do not count towards the championships.
[5] Points are awarded to the top 8 finishers in the order of 10–8–6–5–4–3–2–1 except at the Spa 24 Hours.
[5] Points are awarded to the top 8 finishers in the order of 10–8–6–5–4–3–2–1 except at the Spa 24 Hours.
Drivers who do not drive the car for a minimum distance do not score points.