Autonomous cars versus normal cars should be half as large

Think that all of the vehicles were gone by in traffic. Picture the beautiful morning commute in what used to be gridlock traffic, zipping along at 70 mph in. Immediately to your left you look out the window and see something you have never seen before on your commute: the scenery rolling past you at the speed limit. You immediately look out the window to your right and see something else you have never seen before: a window to your right imme....