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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.
The phone helps get them more data, but they can gather plenty just from the car and its data connection.
The really fun question is - if you elect not to pay for the data plan for your car, will they still enable it anyways because they can make more money selling your information than it costs to maintain a cell contract for the vehicle?