LMDh

In order, Cadillac, Acura and BMW at Road America

LMDh (Le Mans Daytona h)[1] is a sports prototype category that competes alongside Le Mans Hypercar entries in the Grand Touring Prototype (GTP) class of the IMSA SportsCar Championship from 2023.[2] It also competes in the Hypercar class in the FIA World Endurance Championship.[3]

The LMDh ruleset was created jointly by the International Motor Sports Association (IMSA) and the Automobile Club de l'Ouest (ACO).[4] The cars serve as the successor to the Daytona Prototype International class, utilising regulations that were planned to become the next-generation Daytona Prototype International ruleset, converged with the Le Mans Hypercar ruleset.[5]

The FIA World Motor Sport Council had allowed LMDh cars to participate in the 2022 WEC season on a race-by-race basis, "to ensure the seamless introduction" in 2023; however, no LMDh cars would end up participating at any of the 2022 season races, and they would instead make their debut in the 2023 season.[6]

  1. ^ "LMDh Technical Regulations" (PDF). Fédération Internationale de l'Automobile. 5 May 2023. Retrieved 17 August 2023.
  2. ^ "IMSA Top Class to Be Named GTP Beginning in 2023". www.imsa.com. 27 January 2022. Retrieved 1 April 2022.
  3. ^ "WEC allows LMDh cars to race in Hypercar class in 2022". www.motorsport.com. Retrieved 2022-06-28.
  4. ^ "ACO, IMSA reveal LMDh regulation details". www.motorsport.com. Retrieved 2022-08-10.
  5. ^ Pruett, Marshall (24 January 2020). "LMDh to replace DPi in new IMSA ACO convergence". www.racer.com. Retrieved 2 April 2022.
  6. ^ "FIA announces World Motor Sport Council decisions". www.fia.com. 19 March 2022. Archived from the original on 2 April 2022. Retrieved 2 April 2022.