On the one hand I agree about extreme privacy movement and I can see how travel in the public roads provides some reason to provide driving data to the public... or even the builder.
On the other hand, if it's your car why don't you control it and the data it collects? Maybe if it was loaned, leased, or licensed I could see the seller retaining a right to data, but ownership has its privileges.
In the extreme case, let's say your local used car dealer surveils his sales after the fact and at some point offers not to publish details for a monthly fee?
Also, it is difficult to imagine what data would be useful to the public that isn't already collected in public. I don't have to access the data in your car to see if you are driving erratically, speeding, etc, this can all be observed easily enough from outside.
On the other hand, if it's your car why don't you control it and the data it collects? Maybe if it was loaned, leased, or licensed I could see the seller retaining a right to data, but ownership has its privileges.
In the extreme case, let's say your local used car dealer surveils his sales after the fact and at some point offers not to publish details for a monthly fee?