RFID tags embedded in Daytona 500 tires

It just goes to show you that no matter where you turn there are RFID Tags. Millions of people watched the Daytona 500 and seen Jimmie Johnsons #48 car circle the track a few hundred times but they were not seeing were Jimmie Johnson RFID tags. It seems that Goodyear is using them to track stuff inside the tire maybe for possible wear I don't know. Very interesting stuff indeed. You can read more here RFID tags embedded in Daytona 500 tires