CargoOne
ps. Some of the major automotive manufacturers expect to release fully autonomous cars to the market in 2020. You can say it is not the same speed. True. But then road environment is also much less structured and less predictable. Current prototypes driving cities and highways without major issues, it took around decade to get there.
It is easy to migitate problems on the road by just stopping the car at the next possible point, which is no more than a few meters away from present position. That makes reliability and redundancy issues easier to fullfill.
The military has solved that problems with their drones by carrying some decent amount of explosives and an automatic or radio operated fusing system.
Both methods (stopping or blowing up) are less suitable for commercial air traffic. But you and some others still think that expierience in autonomous cars and military drones are of significant relevance?