LM P1-H is the class of the WEC for manufacturers' works hybrid-powered cars with Energy Recovery System (ERS) while LM P1 is for non-hybrid cars (for privateer). Both of them must be closed cockpit. Number plates and rank identification lamps are colored in red. The car is specified its maximum length and height 4,650mm and 1,050mm respectively, and its width must be fitted in between 1,800mm and 1,900mm. 875kg is minimum weight for LM P-1H while 833kg is for LM P-1, plus a ballast or an on-board camera equivalent to 3kg are added on all of this category cars. Engine capacity is not subject to restrictions; instead, fuel flowmeter has to be equipped to limit on fuel flow. The Equivalence of Technology (EoT) is designed to equalize the performance between LM P-1H and LM P-1 in terms of petrol per stint, max petrol flow and petrol energy per lap.

This class is defined as being “a category especially for privateers” and employs “cost capping”. The regulation for LM P2 has undergone significant change for the 2017 season. Four chassis manufacturers and a single engine manufacturer (Gibson Technology) are allowed. The engine is 4.2litre V8 naturally-aspirated petrol. One of the drivers must be in Silver or Bronze category.

A two-door production GT car with 2 or 2+2 seats, constructed by an ACO-recognized manufacturer. The maximum total length is 4,800mm, and the front and rear overhangs are a maximum of 1,250mm/1,100mm. The total width can be extended up to +100mm, but the total height and wheelbase must be the same as the original model.

This class is provided for gentleman drivers, and unlike the LM GTE Pro, the car must be at least one year old or have the same specifications as the car from the previous year. LM GTE Pro has no restrictions on the driver category while in LM GTE Am at least one Bronze and one Bronze or Silver must be included in a crew.