It seems like Waymo... just fundamentally does in fact work. So if we do things with cars intended for long term systematic reform, we should do things that are

It seems like Waymo... just fundamentally does in fact work. So if we do things with cars intended for long term systematic reform, we should do things that are optimised for the world of increasing driverlessness. I imagine a world without drivers to be a lot safer from a driving quality perspective. I can imagine a world in cars where, like trains, it is no longer the norm to wear a seatbelt because crashes are so rare. What implications does that have for the interior design of cars? Does that make the perfect car bigger or smaller?