In reality, the principle behind that “flying” drone (because it’s not a car) was first conceived by a Greek from southern Italy (which is in Europe) named Archytas around 2,500 years ago. It was then developed over centuries in China, centuries before the United States even existed; scientifically explained by an Englishman (Newton) in 1687; and first applied industrially in Germany in WW2. And these kinds of scientific and technological developments made their way to the United States when, after that war, the decision was made to bring a large number of leading European scientists and engineers to America (some of them war criminals, incidentally) and put vast amounts of public money (that same money some people claim is so bad) at their disposal so they could carry on doing what they had already been doing in Europe, but without scruples. Many European minds have been thinking about this for a very long time. That’s why Europeans know it has no particular practical use in a “car”, beyond showing off a very expensive toy.