In this hypothetical I'm not saying that you wouldn't have the right to hack your BMW to let it drive on any road, if you are able to. But BMW aren't obliged to make it drive every road by default, nor are they obliged to make it easy to hack.

And lest you think this is an absurd example, we're already heading down this exact path with drones, of which many now default to being geo-fenced from flying in restricted zones. It won't be long before these restrictions become nominally impossible for laypeople to switch off without some kind of security key.

It depends on what you sign when you buy it. You may very well buy the right to drive the car but not the car itself (like a leasing where you don’t actually own the car until fully paid).

If you buy a Blu-Ray player it will only play approved disks. Heck, the iPhone can only run iOS.