A lot of comments are focusing on safety via driving better. But with self-driving vehicles, can't we make the layout of the car safer, and thus accidents cause less harm to the people inside?

For example, right now because we need to see the road, I assume there is significantly more danger from the windshield vs. a padded back on both sides of the car with passengers facing each other like in a train car.

It seems likely that we can make self-driving vehicles much safer, even with the same number of collisions, by just changing the layout.