Ah, forgive me. I wasn't suggesting that such a robotic car exists already. More that successfully navigating such a situation on a freeway would be an accept

Ah, forgive me. I wasn't suggesting that such a robotic car exists already. More that successfully navigating such a situation on a freeway would be an acceptance test that I would like to insist on before entrusting my life to one, and would DEFINITELY insist upon prior to purchasing one. Were I in need of a self-driving tractor given the much lower speeds and whatnot I might be much more willing to accept a fairly primitive autopilot rather than something truly self-driving. Freeing me from needing to constantly be on the alert to keep a combine from straying from the optimal path is far, far more important that something that'll drive itself from the barn to the diesel pump and then onwards to the field. Were I wealthy enough to afford so much land to where owning such a vehicle was necessary then either driving it myself or hiring someone else to handle that would be entirely reasonable.