You'd have to think about how the weather conditions would be managed too. As it would be extremely dangerous to operate some type of machinery in the sky when there's a storm out.
i plan on being a gold digger when i turn 18 and im gonna buy something that is more useful with all the money i get.
with the way i see a lot of people driving on the ground i'd hate to see those people in the air. -_- -what's the point of a flying car anyway? :huh: