Pregnancies should be fairly straightforward to detect and are hugely valuable info for marketing.
Look at bright side: when car detects that you're knocked up, it can automatically route you to nearest abortion provider. No tech company will dare to track you there!
I think sarcasm is tone Id use in this case, but you do have a valid point.
On a less jokey tone, it’s really not a stretch to imagine someone like a Texas AG filing subpoenas demanding cell providers, cars with data services, etc. identify customers in their state who stopped near clinics in adjacent free states. I’m actually a little surprised that hadn’t already happened.