The 2016 FIA World Endurance Championship season was the fifth edition of the FIA World Endurance Championship auto racing series co-organised by the Fédération Internationale de l'Automobile (FIA) and the Automobile Club de l'Ouest (ACO). The series was open to Le Mans Prototypes and grand tourer-style racing cars meeting four ACO categories. The season began at the Silverstone Circuit in April and ended at the Bahrain International Circuit in November, and included the 84th running of the 24 Hours of Le Mans. This season was also the last WEC season for Audi Sport Team Joest as they decided not to race in the 2017 FIA World Endurance Championship Season.

The 2017 FIA World Endurance Championship was the sixth season of the FIA World Endurance Championship, an auto racing series co-organised by the Fédération Internationale de l'Automobile (FIA) and the Automobile Club de l'Ouest (ACO). The series is open to Le Mans Prototypes and grand tourer-style racing cars divided into four categories. The season began at the Silverstone Circuit in April and will end at the Bahrain International Circuit in November, and include the 85th running of the 24 Hours of Le Mans. World championship titles will be awarded to the leading prototype drivers and manufacturers, while for the first time in the World Endurance Championship the leading grand touring drivers and manufacturers will also be awarded a world championship.