Why Modern Supercars Are Switching to Compact Axial Flux Electric Motors

Engineering Explained breaks down the technical shift toward axial flux motors in high-performance vehicles. By comparing these to traditional radial designs, the video reveals why manufacturers like McLaren are integrating them to achieve superior power density in their latest hybrid supercars.

The 2023 McLaren Artura serves as a prime example of this engineering evolution. It pairs a newly designed 120-degree twin-turbo V6 with an axial flux electric motor. This hybrid setup delivers a total performance of 671 horsepower and 530 lb-ft of torque. The vehicle also utilizes a 7.4 kWh battery and an 8-speed dual-clutch transmission, which incorporates the brand's first electronic limited-slip differential for a production road car.

The core of the discussion centers on the structural and functional differences between radial and axial flux motor architectures. Understanding these distinctions explains how engineers manage to pack significant power into the compact spaces required by modern carbon fiber monocoque chassis designs.

Source: These Tiny Motors Make Big Power! Why Supercars Choose Axial Flux