It is not wise to think that we all will have an advanced and relaxing technology with the electronic cars in 2040. In 1960's, people thought human will definitely started living on space, at least other than earth. But there's not a single man went to moon after 1980
So, we might not have a electric car we are going to need in 2040, and that is why there should not be making any rules on assumptions.
So, we might not have a electric car we are going to need in 2040, and that is why there should not be making any rules on assumptions.