[oldcynic]

I've had an all day test of a car with adaptive cruise (Volvo). I didn't like it - it tended to hunt like someone a bit vague was driving. It worked well if others had their speed nailed as if on cruise control too. Concluded I'd use it about as often as regular mechanical cruise (almost never).

I would prefer driving aids to have UI devoted to ensuring one has to keep attention and can't do extremes like the chap photographed alone in the passenger seat of his Tesla at 70. Oh, and marketed accordingly. Until we have full autonomy and the human can be asleep in the back.