UK electric-motor specialist YASA has demonstrated a prototype axial-flux unit that weighs 12.7 kilograms, or 28 pounds, while producing a claimed peak output of 750 kilowatts. That figure is equivalent to about 1,005 horsepower and represents a substantial increase over the company’s previous benchmark.
The earlier YASA motor weighed 28.8 pounds and reached 550 kW, according to the supplied report. The new prototype therefore adds 200 kW of peak power without increasing its mass. The report characterizes the gain as roughly 40 percent over the prior record holder, which was also developed by YASA.
Peak output is only part of the engineering claim. YASA says the motor can continuously deliver between 350 and 400 kW, equivalent to approximately 469–536 horsepower. That distinction matters because a brief maximum figure does not show how much power a motor can sustain in practical operation. The stated continuous range suggests the prototype is intended to demonstrate more than a short laboratory burst.
YASA also says the design achieves its performance without exotic or unusually expensive materials. If that assertion holds through industrialization, it could make the approach more practical to scale than a prototype dependent on scarce inputs. The supplied account does not provide a production date, price, independent test data or a vehicle program committed to using this particular motor, so its commercial path remains unconfirmed.
The report compares the prototype’s peak output with the combined output of two Tesla Model 3 Performance cars, or four individual Tesla motors. Such comparisons communicate the scale of the headline number, but they do not establish how the YASA unit would perform in the same vehicle architecture. The account supplies no efficiency curve, thermal data, physical dimensions beyond weight or testing protocol. Those missing details prevent a broader assessment of the motor against production alternatives.
Chief executive Joerg Miska linked the result to the power-density advantage of YASA’s axial-flux architecture, saying its performance density is three times that of leading radial-flux motors. Higher power from a lighter package can give vehicle engineers more flexibility over mass, efficiency, packaging and performance, although the effect in a finished car depends on the full drivetrain and battery system.
YASA is wholly owned by Mercedes-Benz and already supplies electric-motor technology for high-performance vehicles. The report identifies the Mercedes-AMG GT XX concept and Ferrari 296 GTB among applications associated with its motors. The new 750 kW unit, however, is described as a functional prototype rather than an announced production component. Its immediate significance is therefore an engineering demonstration: an unusually high peak and continuous output from a compact, lightweight motor, with manufacturing and vehicle deployment questions still open.
