You should be aware that with "connected cars", some contracts were extended with a duty of warning from the vehicle owner to any guest: "I need to inform you that if you enter my car, you accept to be profiled by the manufacturer and its partners" (see https://foundation.mozilla.org/en/privacynotincluded/article... ).

So, which "taxis"? Taxis are getting extinct - with cars. (You did not expect by entering a taxi to subscribe a sinister contract with unclear entities - and some will plainly refuse it. The "unlivable society" proceeds.)