New EV Mashup Marries In-Wheel Motors With Modular Platform

Source: cleantechnica
Author: @cleantechnica
Published: 12/18/2025
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Read original articleThe article highlights a new collaboration between UK-based WATT Electric Vehicle Company and Finnish firm Donut Lab, showcased at CES 2026. Donut Lab specializes in innovative in-wheel electric motors, which integrate directly into the wheel, eliminating traditional drivetrain components like gearboxes and differentials. Their flagship Donut Motor fits inside a 21-inch wheel, producing up to 630 kW (845 hp) and 4,300 Nm (3,171 lb-ft) of torque while weighing about 40 pounds (88 kg), significantly lighter than conventional motors. This design reduces unsprung weight, simplifies vehicle architecture, and enables flat-floor, modular EV platforms.
Donut Lab offers a range of five electric motors tailored for various vehicle types, from scooters to heavy-duty trucks, all featuring high torque and power density with a lightweight footprint. Several OEMs, including WATT, have contracted to use these motors. WATT’s new prototype combines their lightweight “module-to-chassis” integrated battery platform with
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electric-vehiclesin-wheel-motorsEV-technologyDonut-Labelectric-motor-innovationmodular-platformautomotive-energy-systems