Passenger drones and flying cars are expected to be commercialized in the near future. The product and technology development of traditional flying cars and passenger drones seem to be rapidly growing worldwide. These next-generation air travel concepts have been under development for various decades, and several prototypes already exist, with the majority skilled in vertical takeoff and landing (VTOL). A VTOL vehicle is an aircraft that can take off, float, and vertically land without the need for runways.