Interesting and thank you! Just like I'd like a "dumb" tv that I could just plug a Linux machine running Kodi into, I'd like a car that was 100% free from smart features, yet gave me the hooks to power any of the systems with my own software/hardware.

The closest thing is just any old basic obdii and that's it ICE car, where you rip out the oem radio and now have your power taps to do all sorts of fun hacker projects within that new found standard sized void in the dash.