Other flying car prototypes include the PAL-V Liberty, which is a three-wheeled flying car, and the AeroMobil 4.0, which is a four-seater flying car. These prototypes are still in development and have not yet been approved for road or air use.
The main challenges to developing flying cars include safety, fuel efficiency, and noise pollution. Flying cars must be able to safely navigate both the road and the air, and they must be fuel-efficient enough to be practical for everyday use. They also need to be designed in a way that minimizes noise pollution.
Despite these challenges, flying cars have the potential to revolutionize transportation. They could make it possible to travel long distances quickly and easily, and they could reduce the need for car ownership. Flying cars could also be used for emergency services, such as medical evacuations and search and rescue operations.