FINALLY! (The Jetsons had them in 1960, :-)
According to Massachusetts-based Terrafugia, a full-size unmanned prototype is expected to be ready by 2018. The cars will then go on sale more widely in 2024.
"Adversity makes you stronger. Don't give in, don't back down and never stop doing what you know is right. Nothing worth doing ever, ever, ever came easy and the more righteous your fight, the more opposition that you will face." --TRUMP