I think we're at something like 235 millions cars on the road today with QNX inside. The volume blows my mind. We're also hiding inside lots of healthcare products, industrial control systems, etc.

There's lots of interesting key differences between something based on Linux, for example, and QNX. Worth digging into if you're interested in these things. My colleague wrote a short ebook and the intro has a good summary: https://gitlab.com/elahav/qnx-rpi-book/-/tree/master/pdf