Automatic emergency braking at speeds up to 90mph required under new rule

Previous discussions [0](38 points, 1 day ago, 152 comments), [1](38 points, 19 hours ago, 95 comments)

[0]: https://news.ycombinator.com/item?id=40207981 [1]: https://news.ycombinator.com/item?id=40216013