I strongly believe that cars should not be running internet connected software at all. This is a violation of your privacy waiting to happen, and in drive-by-wire vehicles, a homocide waiting to happen. Any of these subscriptions will require periodic phoning home, which means both the tower operators your car maker, and whoever they've done deals with will have specific, targeted information about you including your exact wherabouts, your financial information, and probably a mic and video camera feed in and around your vehicle. This is a dystopian nightmare. Maybe if the car was leased, or was a business vehicle, this could be justified, maybe. But for a personal vehicle your interaction with the manufacturer and dealer should be strictly limited. Given widespread ignorance about these capabilities and what they are used for, I'm in favor of regulation limiting these kinds of connections and transactions in personal vehicles. Some revenue streams are too dangerous and too risky to the public good to allow to exist.