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this post was submitted on 23 Jul 2025
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Electric Vehicles
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Interesting technology but the article compares the bare motor at 28.8 pounds (13.1 kilograms) to a complete Tesla Model 3 drive unit at 176 lbs (80 kg) which has not only the motor but also inverter, oiling system, gear reduction, differential, etc...
A better comparison would be something like Lucid Air motor which they give weights for the core rotor and stator assembly of 69 pounds (31.4 kg) and power density of 15.6 kW/kg, compared to this prototype motor at 42 kW/kg.