They should 100% be opt in. If I want to use GPS I’ll use my phone. I don’t know a single person that uses the one built into the car.

But obviously they want all that juicy data. It’s not enough that they charge insane rates on the vehicles themselves, they must also add microtransactions and track when we have sex, and with who too.

I would say depends. For company owned cars thats justified as it should purely meant for business trip only. For duel use vehicle, that there should absolutely have switch to turn it on or off.