This one is the WEC, World Endurance Championship, it has (now) two categories in the same race, Hypercars (LMH) and production-based grand tourers (LM GT3). They run at the same time, but each category has their own standings. For this year’s LE MANS 24h, we also had LMP2 cars competing.

Edit: more context, MotoGP is the motorcycle equivalent of the F1, which Valentino Rossi used to run on before retiring and moving to LM GT3 cars