https://vehicleprivacyreport.com/

Look up a random VIN with " VIN" to find a VIN that matches the car you are looking for and put it in that website to see the report.

The closest thing I know of is Mozilla's independent analysis on the topic:

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