That's a novel idea, indeed. If they do invent such a thing, they should name it
TAWS!

In the end, if your goal is to crash a plane, you're going to crash a plane. If your goal is to wreck a car, you're going to wreck a car. IMHO, we're simply not at the point where we can truly allocate full authority to a computer system such that it can override any and all human input.