"In response to five class-action lawsuits, a Washington appeals court has decided that Honda and several other automakers did nothing wrong by storing text messages and call records from connected smartphones

...

In other words, it's A-OK for your car to "automatically and without authorization, instantaneously intercept, record, download, store, and [be] capable of transmitting" text messages and call logs since the privacy violation is potential, but the injury not necessarily actual."

https://www.theregister.com/2023/11/09/car_text_harvesting/

"The gist is: they can collect super intimate information about you -- from your medical information, your genetic information, to your “sex life” (seriously), to how fast you drive, where you drive, and what songs you play in your car -- in huge quantities.

...

(84%) of the car brands we researched say they can share your personal data "

https://foundation.mozilla.org/en/privacynotincluded/articles/its-official-cars-are-the-worst-product-category-we-have-ever-reviewed-for-privacy/

More details here.

https://foundation.mozilla.org/en/privacynotincluded/articles/what-data-does-my-car-collect-about-me-and-where-does-it-go/#what-data-does-my-car-collect-about-me