Look ma! No rare earth elements
Due to rare earth's rising costs and unreliable supply, Japanese researchers built an electrical car that doesn't use any REEs.
The proof-of-concept car was built by the Tokyo University of Science, and has an output of 50 kW with 95% plus efficiency.
Eschewing rare earth materials did cost the car in some aspects. The car has poorer torque and energy efficiency than cars that use rare earth metals.