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I think some of that difficulty is because we mostly build up driving intuition on clear roads. An auto-driver will have relatively objective heuristics to evaluate road conditions, which is where humans make a lot of their mistakes (that is, humans frequently just fail to realize that the road is slippery).

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Now that I think about it, the auto-driver would decide it is slippery and go excruciatingly slow. And the next problem is that you can't get up a hill because it doesn't know how to gather up excessive momentum to make it over the hill. The human would say: "I can do it", but the auto driver says: "it's too risky".

So the human wants to run deliberately fast so they can effectively slide up a hill with massively reduced control, and the robot kiboshes it on the grounds it's dangerous? Sounds pretty good to me.

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