The last year or so has seen a growing number of studies exploring the various issues around the attention of passengers in driverless vehicles. The concern is that should the passenger have to regain control, that they will be unable of doing so safely.
Adding growing means of distraction may not seem the most sensible suggestion, therefore, but that's what research from the University of Waterloo proposes via a new system that would allow multiplayer games to be played between occupants of autonomous vehicles.