RE: Technology!29 Mar 2021 11:36
Firstly the cost of the Rare Earths in a Magnet Motor are a fraction of the cost of the Lithium in the Batteries,
Secondly, by using Rare Earths in the Rotor, you do away with Brushes and the mechanical connect
Thirdly, Tesla changed to REE motors a couple of years back
yes other motors exist but most still cannot match the Kw/Kg ratio of the RE motor.
Lastly, to change motors you also have to change most of the other running gear, GM,VW,Tesla,Ford have already invested Billions, they would need a significant cost saving to justify changing their designs now.