* Massachusetts' RMV AFAICT resells one's data, resulting in new car purchasers receiving a huge amount of fraud in their mail. It can be difficult to distinguish what is a legitimate correspondence from the dealership vs. what isn't, as the fraud mail does not clearly identify itself. (And in fact, that's the tell.)

* My Subaru runs ads for Sirius XM. (Ad, on the infotainment screen. While the car's in motion.) I did not pay for my car to run ads, obviously, and obviously that was never mentioned by the dealer, ever, before or after purchase.

Tail risk. Only <1% of people get punished by their car's data. IMO that's still too much.

Are you in the US? Currently if you are in the US and not native-born, you're at very direct risk. That data is how ICE builds their enforcement leads. It's still often wrong, so they might break down your door and arrest you at gunpoint anyways.

Your driving habits, and everyone around you are impacting car insurance for example.

I bought a car earlier this year and it took about a week before I started getting car warranty junk mail for the new car.

Are you asking for articles that show how connected car data is being sold left and right?