Really? The autopilot on my boat will attempt (badly) to go in a straight line, care nothing about speed, and will happily run me into buoys, boats, beaches, bridges, and boulders. If you are foolish enough to attempt to provide a route with waypoints for turns it will throw the rudder over without warning so suddenly that you may be injured or thrown from the vessel.

It's a big world, I suppose there are people that think "autopilot" means "crawl into the back seat and take a nap", but there is certainly a spectrum, and if you try to name something so it can never be misunderstood you will probably end up calling it "NaviaMODE™®℠" and then no one knows anything.