New ‘Pancake’ Motor Invention Could Give Every EV Supercar Speed and Unmatched Battery Range

By Shahzad Aslam :

In a breakthrough that could fundamentally rewrite the rules of electric vehicle (EV) engineering, British manufacturer YASA has unveiled a prototype in-wheel motor capable of delivering a staggering 1,000 horsepower while weighing only 28 pounds (12.7 kg).

Unveiled in late 2025, the new motor shatters the company’s own previous power-density records. By integrating this technology directly into the wheel hubs, YASA aims to eliminate the heavy central drivetrains, transmissions, and axles that have defined automotive design for over a century.

The “Pancake” Revolution: Axial Flux vs. Radial Flux

The secret behind this unprecedented power-to-weight ratio lies in axial flux technology. While most current EVs use traditional “radial flux” motors, YASA’s design uses a disc-like architecture that drastically reduces the motor’s footprint.

Because the magnetic flux travels a shorter, more direct distance, these motors generate significantly more torque while using up to 50% less space and weight than the motors found in a standard Tesla or Nissan Leaf.

Redefining Vehicle Architecture

The shift to in-wheel motors offers more than just raw speed; it enables a “mass-neutral” design where the motor is so light it doesn’t negatively impact the vehicle’s suspension.

Massive Weight Savings: By removing the central powertrain, a standard EV could shed roughly 440 pounds (200 kg). In vehicles designed specifically for this tech, weight savings could reach 1,100 pounds (500 kg).
Space Optimization: Removing the engine bay and transmission tunnels allows for significantly more passenger legroom and cargo space.
Virtual Brakes: The motor’s advanced regenerative braking is so powerful it could potentially eliminate the need for heavy traditional friction brakes on the rear wheels, capturing energy that would otherwise be lost as heat.

From Supercars to the Streets

While this 1,000-hp monster is currently aimed at the hypercar market—YASA is already a key supplier for Mercedes-AMG and Ferrari—the technology is highly scalable. The company’s “yokeless” design does not require exotic rare-earth materials, paving the way for more affordable, long-range electric cars in the future.

By reducing the weight of the motor, manufacturers can either increase the car’s range or use smaller, lighter battery packs, finally breaking the cycle of ever-heavier electric vehicles.