The series was open to Le Mans Prototypes and grand tourer-style racing cars meeting four ACO categories.

In order to save costs and utilize shipping by sea instead of air, the non-European events have all been grouped at the end of the season.

Fuji and Shanghai are moved forward on the calendar, leaving Bahrain to now close the season in November, allowing cooler temperatures than its September date in 2012.

[2] An additional World Cup was awarded for the 2013 season, with drivers in both LMGTE categories having a unified championship.

[5] The qualifying format of the race weekend was also changed, with teams requiring two drivers each to set two timed laps.

[7] The LMP2 category saw several rule changes in order to lower costs, including the issuing of balance of performance updates during the course of the season.

A limit was also set on the price of upgrade kits for 2012 cars for teams not purchasing 2013 chassis, while the number of engines and tyres they can utilize over the course of the season have been restricted.

[8] Two LMP2 teams, Starworks Motorsport[9] and HVM Status GP[10] later withdrew their full-season entries citing a lack of funding.

A single bonus point was awarded to the team and all drivers of the pole position car for each category in qualifying.

Gianmaria Bruni won the FIA World Endurance Cup for GT Drivers at the 6 Hours of Bahrain.

[64] Bertrand Baguette, Martin Plowman and Ricardo González earned the Trophy for LMP2 Drivers at the 6 Hours of Bahrain.