[skepticATX]

Well, let’s think about it from the opposite direction.

Say we built a general system without teaching it anything about driving. We discover that it can drive at a human level. Would we then be surprised if we discover that it cannot solve any other complex tasks at a human level?

I say yes, we would be surprised. I think that driving well requires enough general intelligence and that any system that solves it will be able to also, say, pass a high school algebra class or cook a meal in an unfamiliar kitchen. There can be no further goalpost moving at that point.