Would Apple be required to make their car parts interchangeable with the generic aftermarket brands and car service centers? IIRC there is a law specifically for car manufacturing. I can imagine a dystopian future with custom non-standard parts, specialist repair centers, restrictions on what you can do with it, Apple being able to track everywhere we go, what we listen to, who is with us, and establishing a network…
I can't even begin to imagine how a walled garden for a car would look like. Perhaps there are examples from already existing car manufacturers.
I mean, a lot of the recent right-to-repair controversy in the US has been centered around farmers, and their ongoing battles against machine producers / makers like John Deere.
The gist is that you can't do jack sh!t on a modern John Deere, because all the software involved to diagnose/modify/operate their machines are strictly proprietary, and only available to the company, or authorized dealers and repair shops.
Here's how this could work with personal cars:
Let's say you purchase a Apple Car, and after a month the low washer fluid message starts flashing. Not only does it flash, but every 10 minutes or so it interferes with your whole media system, with some voice stating that you need to fill up on washer fluid.
Turns out your washer fluid level is actually OK, seems to be some sensor error, or bug in the software.
Problem is - you can't touch the car, mechanically or the software. Any modifications will essentially brick the car.
Only way to get this error fixed, is to bring the car to some Apple repair shop, where a tech will fix the problem in 30 seconds, and bill you $1000 for the work.
Other than the bricking part, that's the kind of stuff farmers are experiencing with quite expensive machines.