Autopilot and driver's attention
Autopilot is the correct name for the system. Where do we know that term from? -> from planes.
Just imagine you being a passenger in a plane. Would you want the pilot and co-pilot to leave the cockpit, drink lots of booze and have party with the flight attendants, all the while the "autopilot" does the rest? I'm sure you wouldn't want that.
Also, traffic law still dictate that a driver needs to focus his whole attention on the traffic. So the "Drivers are supposed to keep their hands on the wheel, and remain prepared to take control, at all times when Autopilot is engaged." in the article is misleading. Its your legal duty to keep your hands on the wheel and focus your attention to the traffic and surrounding.