If you had a suspicion your modern car is spying on you, you’re probably right. Vehicles these days are connected to the Internet of Things, able to feed data back to the cloud in real time. Once it’s there, what happens next may not be something you explicitly agreed to. Now the tide is starting…
The only new car I’m aware of that should not monitor you would be the Slate pickup. Early in their development they mentioned this as a feature, but they haven’t brought it up in a while. So something to double check.