The tires DO have serial numbers and they ARE documented for your car at delivery. This is NOT a common experience though with the numbers, we can expect 5-8 folks here having something similar. Your TPMS can react fast, but for a real blowout of less than a second or 2, nothing so far installed in tires today can beat that. I had a catastrophic tire failure (puncture) and the TPMS DID react, but in reality just about in time to tell me my tire was flat. This was at 40 mph over about 200 yards. I had NO scary effects and was able to drive the rest of about 600 yards directly to my Audi store - I was headed there anyway, what luck, or not as it cost me $300.