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ActionsA Le Mans Daytona h (LMDh for short) is a racing car built to compete in the premier class of the IMSA WeatherTech SportsCar Championship and the World Endurance Championship (WEC). The LMDh regulations were created jointly by the International Motor Sports Association (IMSA), the Automobile Club de l'Ouest (ACO) and the Federation Internationale de l'Automobile (FIA), to allow cars to compete alongside those in class Le Mans Hypercar (LMH) in the world endurance championship. Cars built to the LMDh regulation have replaced IMSA's Daytona Prototype International Class (DPI) from 2023. LMDh builders must incorporate a specific hybrid system producing 50kW (67hp) in their propulsion package, with a maximum power between 480 and 520kW. This system forms a key part of the so-called backbone of the car: all LMDhs are based on LMP2 chassis. The category has been designed in such a way as to make participation in the WEC and IMSA championships easier and more direct. In fact, many brands that race in the world championship also have at least one car in the American championship.
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ActionsBMW M Hybrid V8
After more than twenty years of absence, BMW returns to the world of endurance racing. The BMW M Hybrid V8 is based on the Dallara LMP2 chassis and is equipped with a DTM-derived 4-litre Biturbo V8. Furthermore, as per regulation, it is equipped with the Bosch motor-generator. Right on the track named after Riccardo Paletti in Varano de' Melegari, a few steps away from the Dallara headquarters, the Bavarian company performed the shakedown of the LMDh prototype which is taking part in the 2023 season of the IMSA WeatherTech SportsCar Championship. Their commitment will also expand into the FIA WEC from 2024.
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ActionsCadillac V-LMDh
The new Cadillac LMDh-V.R prototype is designed to meet IMSA and ACO Le Mans - Daytona hybrid specifications for the new top class of endurance racing. The car is, as can be understood from the name, an LMDh prototype, with the chassis supplied by Dallara - descending from that of the current LMP2 - and a 5.5-cylinder V8 engine with hybrid system. As with the Cadillac DPi-V.R, the Cadillac LMDh-V.R is the result of a partnership between GM Design and Dallara. The American brand has chosen Chip Ganassi Racing as the official team and Action Express Racing has been entrusted with another V-LMDh. The teams are entered as Cadillac Racing and Wheelen Engineering Racing respectively, and the three cars made their first track debut at the Rolex 24 Hours of Daytona in January 2023.