I certainly didn't know there are tags in tires That's the first I've heard of it myself, although it seems inevitable since one of the biggest selling points

I certainly didn't know there are tags in tires That's the first I've heard of it myself, although it seems inevitable since one of the biggest selling points of RFID tags is for inventory management. We are likely to see RFID tags everywhere we currently see barcodes. http://www.securityinfowatch.com/press_release/10492011/why-walmart-is-adopting-rfid http://www.securityinfowatch.com/press_release/10492011/why-... But... to get back to the RFID in tires thing there is more to it than just that. Current vehicle safety codes require in-cabin monitoring of tire pressure. One way to do it is for the car to pay attention to changes in wheel rotation speeds (lower pressure means smaller effective radius). Another is to put a pressure guage in each wheel that talks to the car's computer wirelessly and gives more exact numbers so is more common. So even without RFID in the tires, most cars still transmit a unique ID number everywhere they go. http://news.rutgers.edu/news-releases/2010/08/wireless-tire-pressu-20100811 http://news.rutgers.edu/news-releases/2010/08/wireless-tire-...