Photo Credit:Fair Use [17 U.S.C. § 107] YASA electric motor weighs less than 30 pounds, but produces 737.5 hp.

A Tiny 29-Pound Electric Motor Just Beat Everyone in Power Density

30 Jul 2025 | Abstracted from Popular Mechanics

Yasa, a UK-based engineering firm under Mercedes-Benz, has created a breakthrough prototype electric motor weighing just 28.8 lb and generating 737.5 hp - setting a new benchmark for power density at roughly 42 W/kg. While Koenigsegg's Dark Matter motor delivers 800 hp, it is significantly heavier. Yasa's design avoids exotic materials, enabling scalable production of up to 50,000 units annually.

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