World Endurance Championship
From 2012 onwards, the ACO/FIA World Endurance Championship is the summit of the Endurance pyramid. 2018 is a year of transition with the Super Saison and a 2018-2019 calendar comprising five 6-hour races, the Sebring 1000 Miles and two stagings of the Le Mans 24 Hours. It is open to two major categories, the LM P1 and LM P2 sports prototypes and the GT cars, LM GTE Pro and LM GTE Am. The LM P1 category may be the main category, but the LM P2 field grows bigger and stronger each year.