I've said this before and I'll repeat it again -the increased weight and failure rate of electronically controlled motors is going to make them impractical IMO.  In a modern car you have literally dozens of small motors -if each one became a more complex electronically controlled motor the failure rate would go through the roof -example if you have a 1% failure rate over 5 years that a 25% failure rate for 30 motors over the same period necessitating an expensive repair bill. If the car is in warranty -which is increasingly likely- the bill gets picked up by the manufacturer...

Now for the main motor the power electronics replacement is going to be even more expensive if it blows + you have the additional weight and inneficiency which it has been shown leads to bigger batteries and poorer overall performance of the car.

Even if an electronically controlled motor could be made that had exaclty the same characteristics as a REPM it would be years before it came into widespread service.

What we need is stable -lower- Ndy, Dy prices and gauranteed non-Chinese supply chains and we are almost there... 

GWMG and a handful of others are well on their way to fulfilling this goal.

Nick.