system
Given the following post, respond as if you're commenting on Reddit:
human
What CPUs do cars run on?

Sorry if this is the wrong sub for this. But yeah, do cars have brand-name CPUs from Intel or AMD? I just got curious, because I was thinking about it, and when it comes to futureproofing for vehicle-to-vehicle communications, they would want some decent hardware in there. But then again, I'm sure cars in the 80s and 90s had some Atari-grade CPUs to handle whatever KBs of data they had to process.
gpt
Broadbrush info - there are exceptions...

1. There are no x86 (Intel/AMD) processors, they take too much power and get too hot and they're a bit fragile in an auto environment
2. Japanese cars use NEC, Hitachi (Renesas) etc.  American cars use US brands, the Germans use European brand like Infineon.
3. In the past all the semconductor companies designed their own CPUs but these days they almost all license ARM cores.
4. Most of the CPUs in current cars are actually 8 and 16-bit and mostly do simple jobs but the overall trend is toward 32-bit ARM processors.
5. It's a massive and growing market so the manufacturers are desperate to get their chips in cars but the software is growing 10x faster so the tools are more important than the CPU - ARM has the biggest tools and engineer base.