[FlynnLivesMattr]

> "One of our designs has a peak power density of around 15 kilowatts per kilogram. Compare that with today’s motors, such as the one in the all-electric BMW i3, which delivers a peak power density of 3 kW/kg—or just one-fifth as much. And the Magnax machine is also more efficient."

It will be interesting to see how Moore's law will materialize in EVs. Understanding that the majority of time and effort spent in the automobile industry has been aimed towards combustion engine design as opposed to electric motors, it will be equally interesting to follow the efficiencies to be discovered in the imminent future, taking into consideration how blazing quick they already are today.

[Gibbon1]

15kw is about 9hp/lb. If you can get that maybe you can design a wheel motor that doesn't suck. Two 75 hp motors would weigh about 8 lbs each.

No gear box, differential or CV joints. Potentially really cheep.