Its not subscriptions doing the surveillance but mandatory (legal or technical) black boxes built into the car...
Yeah, any tracking expands the surface for surveillance, whether it's for subscriptions or for safety.
Market incentives make subscription tracking likely to become more and more all-encompassing, though. (like with "Smart"-TVs) That's a dynamic absent from safety tracking.
OTOH, safety tracking is politically much harder to push back against because it's framed as a protection or safety feature. ... hard to tackle if it's there by law in some global juristictions.
Don't the subscriptions just allow you to also access/use the data already collected (and sold) anyways?
I smell a business opportunity for someone to design little Faraday cages that fit over the "shark fin" antennas on roofs of cars.
This ship sailed when everyone started carrying internet connected smart GPS devices in their pockets. Even before that cell phone tower triangulation has been a thing. I agree that it would be nice if our cars didn’t track us, but this is small potatoes.