Re: "Cars already decide when to change gear for you"
@Jake - None of mine [change gear for me]. Nor will any of them, ever.
Hopefully the act of changing gear will be as old as feeding horses anyway - the electric motor will kill it off. But seriously - when did you last see an automatic gearbox fail?
@Jake - what will happen the first time a self-driving car kills somebody?
It will be an event which will be analysed thoroughly and the lesson(s) learnt will be taken on board by all other vehicles on the road, and *never* repeated.
The possibilities for carnage are *far* higher if you put tired, distracted, fallible, meatsacks in control of a lethal weapon.