LMDh (Le Mans Daytona h) [1] is a set of sports prototype regulations used alongside Le Mans Hypercar (LMH) in both the Grand Touring Prototype (GTP) class of the IMSA SportsCar Championship and the Hypercar class of the FIA World Endurance Championship.

imsa用代表原型车黄金时代的“gtp”命名了lmdh赛车所在的组别，也可见其重视程度。未来可能还会有更多厂商 (如现代) 加入lmdh组别，或许imsa真的能再一次实现1986年gtp七厂共斗的盛景；笔者也相信这些lmdh赛车在未来的竞争会更加精彩。

A Le Mans Hypercar (LMH) is a type of sports prototype race car that competes alongside LMDh entries in the Hypercar class of the FIA World Endurance Championship. It also competes in the Grand Touring Prototype (GTP) class of the IMSA SportsCar Championship .

利曼戴通納h[註 1] （英語： Le Mans Daytona h，LMDh） [1] 是一類原型 賽車，将与 利曼超級賽車 （Le Mans Hypercar）一同于 国际汽联世界耐力锦标赛 最高组别超級賽車 (Hypercar)組别参赛，2023年起该类赛车也将在 國際賽車運動協會跑車錦標賽 中以全新最高组别GTP组别参赛 [2]。

2022年8月29日 · I think, it's a news from august 2021. Now the only option for Nissan is to rebadge a Alpine LMDh in 2024 and race with Andretti I think

2025年1月5日 · In a bid to enhance convergence between the Le Mans Hypercar (LMH) and Le Mans Daytona hybrid (LMDh) classes, the FIA, often in collaboration with the ACO and IMSA, has introduced additional lines to the technical regulations of these categories. However, the distinctions LMH vs LMDh remain unclear to many enthusiasts.

2024年6月12日 · The Hypercar class, introduced from the 2021 season, allows two types of cars: LMH (Le Mans Hypercar) and IMSA’s LMDh (Le Mans Daytona Hybrid). The former can have four-wheel drive if a hybrid powertrain is used, LMDh cars meanwhile are rear-drive only, and fitted with a spec hybrid system. Evolution of the hypercar rules

2020年1月25日 · 根据ACO与IMSA的共同新闻稿，LMDh赛车将由现行的LMP2级赛车制造商达拉拉，LIGIER，MULTIMATIC与ORECA打造，并融合现行的与将于LMP2 9月正式投入的LMH（超级汽车）赛车车架技术与在后轮加装已在与F1 LMP1级赛车的动能回收系统（KERS），如此一来不仅能让仅次于LMH的LMDh赛车成功油电混合动力化，参赛成本也不会因此过度飙升；至于未来能不能在IMSA赛场看到LMH赛车出赛则是仍待ACO的讨论结果与IMSA。

2020年9月18日 · IMSA Technical Director Matt Kurdock and ACO Technical Director Thierry Bouvet then unveiled the specific technical details for the new LMDh car, which will feature hybrid engine technology. The estimated cost of a complete LMDh car, without the engine, is one million Euro ($1.1-1.2 million).

2020年1月24日 · The class, called Le Mans Daytona h (LMDh), takes inspiration from IMSA's upcoming DPi 2.0 prototype rules as well as ACO's LMP2 cars and Hypercar class.