Re: I dont get it.
Or did I miss something?
Solar power. It's already at parity with fossil-fuelled generation in hot sunny parts of the world, such as California and Arizona. Soon, it'll be a no-brainer anywhere less cloudy and Northerly than the UK.
These cars are rich men's toys today. As were internal-combustion automobiles in the first decades of the 20th Century. They'll be everyone's cars a few decades hence. Just as most of us drive automobiles with internal-combustion engines today.
(You also missed wind power, wave power, and even nuclear fission power)