Agree, Wigwam. The current supply of lithium and cobalt will not support the major switch to EVs promised by politicians wishful thinking. New battery tech needed. BMW are introducing a new model with less rare earths, but starting at £69,000. To provide a good/acceptable power to weight ratio in a DC brushless motor, it requires Neodymium mixed with ferrous Permanent magnets. Mostly mined in NW China, doesn’t come cheap.