I don't recall what kind of car it was, but there was one that saved the phone number associated with any phone that connected via Bluetooth.
While I don't think it's likely as a way to trick people to connecting to get their phone number, it was a rental car which opened them up to impersonation scams. Knowing they just rented from the company and where in the city provides quite a bit of information on you.
Thank you for this inspiration. I've also been things about a switch to Mint but the only thing holding me back is my Steam library. I'm going to dig into it a little more and look at the compatibility of my games. It's encouraging to hear others making the leap.