I’d love this, but I doubt that it is ever going to happen. Open-Source-Hardware is not as widely spread as open source software which is also still a niche. The big difference is that you can easily develop OSS on your own in your free time, but with hardware its a lot more difficult. And then think of all the parts necessary to build a car and then again all the certifications to actually get it on the street and after that the question of liability in case of accidents…

Source?

I have one, but it is hard to transpost a lot of things on them. But maybe I should look into a trailer for it :D

the maintenance systems have been electronic based forever now though, haven’t they?

And I mean there comes the time when older just means cars from 2020… And I admit that I am not getting a car for which I’d have to be a mechanic to live with it…

I’ve pulled the onstar system fuse which kills the telemetry and GPS+cell antenna

If that is possible in a european car that would be exactly what I’d want to do as well :D

That said, your phone shares all that data already, it being shared by another device is not really much different than coming from one source.

That is imo neither here or there. It is about the car. “Another device is also bad so its irrelevant” is just not a good response.