In the U.S., there currently is some legislation regarding flying cars. The Federal Aviation Administration created the light sport category to encourage the creation of compact, easy to operate aircraft.
Many States limit their speeds in various areas. The difference in speeds between vehicles has a far greater effect than impatient drivers. While it is true that having slower vehicles running alongside faster ones creates a hazard, by controlling the merging and keeping lanes separated can mostly solve that problem. Ideally, more on ramps and off ramps can be built from the center, for small vehicles. You could also make the center the slow lane for large vehicles, and only allow large vehicles to enter the freeway at limited locations. Slow down all traffic through these zones and kick them back up after merging areas. This is done already on many freeways as you pass through a city or town. No small vehicles would ever enter the truck lanes that way. And their speeds would be matched while trucks merge.
True - limited to 2,000'. And, there are limits on aircraft allowed to fly over cities (called "congested areas"). So far, I don't see rational safety measures. We already have drone near misses and airspace incursions. With no requirement for licensing for drone operators or pilots, there is a growing number of flying vehicles where the operator doesn't know about airspace design and doesn't know (or have the equipment for) communications with other aircraft or air traffic control. Much of low level flight depends on "see and avoid". The catch is that it is really hard to spot aircraft, and drones don't even have that capability. Plus, those of us taking advantage of ARTC flight following or flying IFR are depending on radar that has seriously limited or no ability to detect small objects near the ground. And, there is essentially zero policing. It's a wonderful idea that is going to come. But, something is going to have to change. The FAA is always monumentally slow and conservative about rule making, so it's no real surprise that they are doing essentially nothing about it.
Yes, American automakers built a legacy of unreliability and constant refusal to provide good mileage. I really don't see that they've gotten much better in producing the cars that those in our growing metropolitan areas and those interested in lower environmental impact want. In fact, that vid seems like an understatement. Today in the US, Honda, Toyota and Subaru lead reviews in most SUV categories with Mitsubishi and others close behind. So, the claims in the vid concerning US manufacturers success in that category seem overstated.
That thing IS very cool. Once they can get the laws modified to allow larger batteries, we're on our way.
