The ACO?s WEC Hypercar category will be merged with IMSA?s new DPi platforms, creating a new top class of endurance racing; LMDh.

On the Friday of the 2020 Rolex 24 at Daytona, IMSA, the ACO and the FIA held a joint press conference where they announced the joining of their top classes, including both WEC Hypercar and the new DPi platforms. This new top category is called LMDh and these racecars will be eligible to race in both the FIA World Endurance Championship (WEC) and the IMSA WeatherTech SportsCar Championship.
The plan is that from September 2021 in the FIA WEC and from January 2022 in the WeatherTech championship, manufacturers will be able to race in the top category of the two leading endurance championships with a new LMDh car. Governing this LMDh category is a set of regulations that include elements from the DPi 2.0 regulations but upgraded to bring the cars into line with the Hypercar rule set that was already announced last year. The fixed elements of IMSA?s regulation will be:

Based on a new chassis common to both ACO and IMSA, using elements of the Le Mans Hypercar and LMP2 chassis, built by the four current LMP2 manufacturers: Dallara, Ligier, Multimatic and ORECA. This chassis will also be used for the new generation LMP2.
The car will use a common hybrid KERS system, on the rear axle.
Its silhouette and design will be modifiable, developed according to the brand or style of the manufacturer which will provide the engine power f...