We've been improving front seat safety systems for years while not adding much in the back seat. The result is obvious in the fatalities data and many institutions have involved themselves in this problem. Here's one:

https://www.iihs.org/news/detail/new-crash-test-spotlights-l...

There are _so many_ bad assumptions about vehicle safety it honestly drives me nuts. Especially on Hacker News. The data is available from NHTSA in a database called FARS. I encourage everyone to go look through the data. You almost certainly believe several wrong things about driving and fatalities.

I think Elon Musk is exceptionally irresponsible for using these statistics in a flatly dishonest and misleading way. He wants to sell vehicles not truly educate you about safety. People should double check.