I am wondering if the design of the Tesla motor could be modified to double the torque and cut the operating rpm range by half. It eliminate the 2:1 fixed reduction gear that Model X uses. May be reduce the weight of the car, cut costs.
I have not been in this kind of think in decades, but I think it would involve increasing the diameter, doubling the elements in the squirrel cage? Or keep the same diameter, just double the squirrel cage?