Moller M 400 Skycar interesting. It is a 4 passenger skycar and cruises at 275 mph. Is a prototype personal VTOL aircraft – a "flying car" – invented by Paul Moller who has been attempting to develop such vehicles for fifty years. Wikipedia Top speed: 330 mph (531 km/h) Length: 19' 6" (5.94 m)
The US Air Force,s extremely tiny remote controlled vehicles that are based on insects will most likely have been deployed in sensitive areas to date, where these are called the micro air vehicles (MAVs), and will share similar physics as that employed by flying insects.