You can do this for much cheaper - all four of your tires are broadcasting a unique ID to report tire pressure, the radio to pick it up is cheap (because cars), and TPMS has no facility to randomize or otherwise secure this.

▲

Gigachad 2 hours ago | parent | next [-]

It’s actually even easier, your car has a plate on the front with a unique ID that a camera scans, often to automatically track your park time for ticketing.

I can’t really care about obscure Bluetooth tracking when every business has CCTV doing facial recognition.

	▲	wolvoleo 23 minutes ago \| parent [-]
		Yeah exactly, with a car I would no longer be expecting any type of privacy, sadly. Here in Holland we must even have a mobile phone module in every car so it can call the emergencies in case of a crash.

▲

spockz 2 hours ago | parent | prev | next [-]

Not all cars have active TPMS. my Volvo xc90 had them but in later models they switched back to passive ones. So it is not even a given for higher end models.

	▲	ssl-3 an hour ago \| parent [-]
		That's not quite the end of the road, though: The tires themselves often have RFID tags embedded. https://rfid.michelin.com/what-is-rfid/

▲

stirfish an hour ago | parent | prev [-]

I've had trouble reading these from more than a few feet away, but I concede that I have no idea what I'm doing