Dennis the Elder, you are possibly right that vehicles that are basically electrically-powered are of debatable efficiency overall, that is my guess, too, but there are points to consider:

Petrol/gasoline vehicles were once very inefficient. They got better because buyers demanded it over the last 100years.

We are in the hands of the oil cartel. I'd like to get out.

There are ways of generating electricity that are both non-polluting and becoming more widely accepted.

Batteries are becoming better. They certainly need to. Then there is fuel-cell technology coming along.

We (here I go, speaking for everyone on Earth!) will likely need alternatives to petrol/diesel power in our children's lifetime. It might be a good idea to start developing them now. They won't get developed without sales.