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Mozilla review of 25 car brands finds they're "a privacy nightmare"
(foundation.mozilla.org)
This is a most excellent place for technology news and articles.
I mean, read the article and especially some of the individual reviews. GDPR is all over the place.
As a TL;DR cars made for the EU market score much better than US models, but the devil is in the details. If you've got some time at hand, it's a real eye-opener to go over their summary at the very least.