These powerful wheel motors could usher in the next generation of high-performance and affordable electric vehicles.

In the realm of electric vehicles, in-wheel motor (IWM) technology is poised to revolutionize the market. This innovative solution, which has been in development for decades, now presents more accessible and efficient possibilities, according to the presentation by Donut Lab, a subsidiary of Verge Motorcycles, at CES 2025.

Traditionally, electric vehicles use a motor that drives one of the axles, which, while functional, has disadvantages in terms of efficiency. Energy is lost due to friction in the transmission and other mechanical components, which counters the battery range. Additionally, vehicle design is limited, as they must accommodate a bulky electric transmission.

Recently presented IWM technology promises to change this dynamic. Donut Lab has developed motors that can be as light as 40 kg, with a power-to-weight ratio that surpasses that of conventional electric motors. Marko Lehtimäki, the company's CEO, stated that their 21-inch version can generate up to 630 kW (845 hp) of power. Considering a system of four motors, the total power could reach 3,380 hp.

However, manufacturers are likely to opt for a more moderate implementation, using lighter and less powerful IWM motors on the rear axle, which could still achieve between 600 and 800 hp at a lower cost. Additionally, variants for motorcycles are being developed; for example, a 17-inch model that produces around 200 hp with a weight of only 21 kg.

Donut Lab has managed to optimize the use of active materials, allowing for a 50% reduction in manufacturing costs compared to traditional electric motors.

At CES, Elaphe Propulsion Technologies, another pioneer in this technology, also presented its Sonic 1 motor, which produces 268 hp. It was showcased in the Italdesign Quintessenza concept, a futuristic fusion of a pickup and an SUV that features a motor in each wheel, resulting in a total of over 2,000 hp. Although Elaphe expects to develop this concept for mass production, commercial models are not anticipated before 2030.

As competition intensifies, BMW and Hyundai are also exploring the development of in-wheel motors. BMW, in collaboration with DeepDrive, and Hyundai, with its 'Uni Wheel' technology, aim to innovate the way electric vehicles are built, improving both the range and the durability of the motors.