Humans have been dreaming of cars that drive themselves and fly for years. The only flying Tesla, so far, is the one that Elon Musk launched into space in 2018. Earth-bound Teslas do not have the ability to fly, at least not yet.  They can, however, drive themselves with incredible accuracy. These pricey vehicles are beautiful and powerful, and they can make your driving more relaxing. But is it practical to have a car that needs special chargers, skilled and specialized mechanics, and is expensive to insure?