I was browsing for implementations of Raspberry Pis to add smart features to cars and I came across a Kickstarter project from last year that delivered earlier this year. It is called the AutoPi: https://www.autopi.io/
It is a unit that uses a RPi0W with a custom pHat and is powered through the OBD port of the car.
Looks interesting, I was wondering if anyone here has tried one.