Entering a vehicle or sometimes just walking past it exposes that person to that auto manufacturer's privacy policy.
Entering a vehicle or sometimes just walking past it exposes that person to that auto manufacturer's privacy policy.

‘Privacy Nightmare on Wheels’: Every Car Brand Reviewed By Mozilla — Including Ford, Volkswagen and Toyota — Flunks Privacy Test

Hmm, but I did not agree to those privacy policies nor was I provided with a copy.
This seems like potential grounds for a lawsuit. Anyone have an idea how to demonstrate harm?
I'm pretty sure the EU GDPR requires explicit & clear consent for data collection.
That's up to a £17.5m fine or 4% of your annual turnover, whichever is higher
How about national security? Russia or NK might struggle hacking the CIA but Nissan or Mercedes ain't going to have the same security. Now you have hundreds of thousands of multifaceted information collection devices spread throughout the whole country in the hands of companies that would take the seat belts out if they weren't legally required to put them in.
This is exactly why it's forbidden to discuss classified information outside of a secure facility... even if you think you're alone with another cleared person.
Obviously, humans are gonna do human things, but the government has policies in place to try and prevent this sort of leak from occurring.