> https://www.iihs.org/news/detail/evidence-mounts-for-effectiveness-of-rear-autobrake https://www.iihs.org/news/detail/evidence-mounts-for-effecti... Exactly

> https://www.iihs.org/news/detail/evidence-mounts-for-effectiveness-of-rear-autobrake https://www.iihs.org/news/detail/evidence-mounts-for-effecti... Exactly what I said. No serious trial (or any trial). What they describe is an observational study where they compare the same make or model with different levels of safety equipment. The obvious confounding is that they're comparing people who care enough about safety that they are willing to pay for additional safety features, compared with people that are not willing to pay. There's a reason we have double blind randomized controlled trials in medicine. The alternatives just don't work.