Some figures quote up to 4.5kg kg of rare earths in a hybrid car. Also lithium is used for the batteries. Although not a rare earth it is widely scattered at low concentrations. Like everything else the answer is not simple. Electric cars compete with modern electronics and green energy options (particularly wind turbines) for rare earths. China has the largest reserves followed by India and Vietnam that both together equal the reserves of China. A long way behind comes India and Australia. The link below shows how far more elements are involved in modern life compared to ancient windmills

https://theconversation.com/mining-for-metals-in-societys-waste-43766
Realistically battery technology needs to make a quantum leap in efficiency and ease of charging before offering a replacement for internal conmbustion engines. This is apart from the competition for vital resources to produce them. Like oil and gas reserves are finite.
Perhaps the way to go is to ration energy. One trip to the supermarket versus 5 hours of central heating. Some figures quote UK households burn through 4000kw/hrs of electricity each year, the US double that.
Many parts of the third world would be ecstatic to have electric light during the hours of darkness.