I don't think it's that insanely ambiguous.

If the car moves extremely slowly in a major city, it would get banned after a handful of traffic jams, and so wouldn't be commercially available. And anyways no company would risk the bad PR of launching a car that tops out at below the speed limit.

If the car calls itself a tow truck, it has obviously failed to drive itself.

If the car is programmed to avoid tricky roads, it can't "drive everywhere in all conditions" per SAE.