I'm sure this is something Elon Musk would be trying to make, too, because there's a lot of expertise that his companies already have to build something like this: autonomous tech, rocket engineers, batteries, electric powertrains, solar panels, and he has already said he would probably build an electric airplane next.
If only he had the money to experiment with something like this. That's why I'm hoping that Apple buys Tesla eventually and makes Musk its CEO and lets him do whatever he wants with those $150+ billion (maybe $300 billion by then) cash reserves.
And apparently he's already toying with flying stuff: