[cesarb]

> In contrast it's easy to build high efficiency electric motors, and we've been doing that in many applications for years.

Playing devil's advocate: in the case of EVs, the hard part is not the motor, it's the battery. If it were easy to build high efficiency and high capacity batteries which are also small and light enough to be used on a vehicle, we'd have EVs everywhere long ago. (A second hard part is the power semiconductors, to convert the DC from the battery to variable frequency AC which can be used by these high efficiency electric motors.)