In 1940, Henry Ford, known famously as the founder of Ford Motor Company, once said, "Mark my words: a combination airplane and motorcar is coming. You may smile, but it will come." Seventy-eight years later, flying cars are now starting to emerge. For Ford Motor, however, they've yet to join every other company in developing their own brand-specific flying car.

That all might be changing. Last year, when companies like EHANG and Uber noted an interest in developing vertical take-off and landing (VTOL) vehicles, Ford's executive chairman (and great-grandson of Henry Ford) Bill Ford stated, "We're not [working on flying cars], but it's not so crazy. Although I would say they had better be autonomous."

Autonomous flying cars appear to be the most popular method of approach for those companies currently developing them - EHANG, Uber, Volvo, Kitty Hawk, and more.