two companies in Palo Alto working on that. One headed by google. http://www.bloomberg.com/news/articles/2016-06-09/welcome-to-larry-page-s-secret-flying-car-factories
at least one company in england also working on that. none of them fold up into a briefcase but they are designed to get into the carport. http://www.autoworldnews.com/articles/16361/20160405/britains-dyson-tech-introduces-a-new-electric-flying-car.htm
I watched the jetsons when I was a kid in 1964.
What I tell people these days is that technologically the USA is swinging back around to 1964. At that time it was thought that energy too cheap to meter and commercial space flight were only a decade or two away because NASA was moving ahead so quickly to put a man on the moon and the price of electricity by nuclear power was dropping like a stone.
Neither happened. Vietnam and OPEC forced budget cuts by the federal government and 3 mile Island forced multiple redundancies in nuclear power plants causing nuclear plant prices to go up. The 70’s changed things in a big way from the 60’s.
But technologically, at least, the USA is swinging back around to 1964. What with Musk planning to put a man on the mars in 9 years and multiple energy sources promising energy at a fraction of today’s prices sometime in the next decade or two. Plus multiple industries talking about a fourth industrial revolution in the next 10 years as if the last ten were not impressive enough.