@Keith and Curtis
Fair comment from Curtis, but Keith does have something of a point.
Fact is, the first generation of just about everything is rubbish.
Consider the first conventional cars, or steam locomotives before Stephenson got most (not all) of the bugs out. Or the Baird television system. Or even the humble plough; pulled by people, it meant a couple of millenia of backbreaking work until a decent ox, then horse, harness was added.
We seem to improve things rather more quickly these days, and viable autonomous vehicles will probably be with us quite soon, at least for the military.
If that bothers you, just remember what Arnie did to the robot cabbie in 'Total Recall' 8-)