i started to think about an interface for car functions. if anyone is interested I will continue the work. here is my first work https://github.com/gras64/car-control-example-skill
Now if there was only a docker container for the offline back-end i would put an rpi4 in my car and build an obdii skill.
that would be cool. but first I thought of a cell phone hotspot or LTE USB. obd2 doesn’t seem to have all the functions or do you know a good tool. Maybe you could connect mycroft to carplay or obd2 bluetooth on your mobile phone. I’m still looking for ideas. I will surely need help and ideas. I still have some time because my 20 year old car can’t do anything but engine temperature 
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