The FIA World Motor Sport Council has approved the Le Mans Hypercar technical regulations that will align the formula with the upcoming LMDh platform.
Confirmed on Friday, the WMSC decision rubber-stamped a reduction in overall horsepower from 585 kW to 500 kW (785 to 670 hp) and a minimum weight reduction from 1100 kg to 1030 kg.
The changes were announced on May 11 by the FIA Endurance Commission, but at the time were still subject to WMSC ratification.
LMH power, weight and aerodynamic performance have all been reduced to match the cars’ outputs with the IMSA LMDh vehicles that will be eligible to compete alongside LMH in the FIA World Endurance Championship and the 24 Hours of Le Mans from 2022.
The move is also designed to provide cost-savings to manufacturers undertaking LMH projects.
The WMSC, which met virtually rather than in-person, also agreed on the “general principles” of the LMH/LMDh convergence including a Balance of Performance system.
Furthermore, it reiterated that LMDh cars will continue to be based on the four LMP2 origin chassis, effectively ending Ginetta’s hopes of being added as a fifth constructor.
The global IMSA cars will carry a common rear axle hybrid system and a manufacturer-branded engine with manufacturer-stylized bodywork, while hybrids will be optional in LMH where companies are free to build their own chassis.
Toyota, Scuderia Cameron Glickenhaus and ByKolles Racing Team have all committed to LMH, while Peugeot is still yet to confirm which of the two formulas it will pursue.