Not kill. Control. Like Tesla deleting features that the original owner paid for. Like BMW charging a monthly fee to activate features already built into the car. Like UI updates that are automatic and make options worse but you can't stop the updates.

Being harmed is also a concern. I don’t own any other products where a software bug or compromised system has quite the same potential to physically harm me.

But underlying that is the fact that there are no networked features that I personally want my car to have. So however small the risks (of both physical harm and being effected by bizarre networked car dark patterns), they are risks that I would be taking exclusively for the benefit of the manufacturer of the product for which I am supposedly the customer. As long as there is an acceptable alternative to such a product, I will always choose the alternative.

>Like Tesla deleting features that the original owner paid for.

If you think this has happened, I believe you are mistaken. But I'm open to hearing evidence.