The Institute of Electrical and Electronic Engineers publication IEEE Spectrum reports South Korean tire manufacturer Hankook is working on airless tires practical for passenger vehicles in normal use and highway speeds. Hat tip to Instapundit for the link.
These tires could not blow out or go flat. Much testing must ensue before they will be marketed.
Airless tires are exactly what every wheelman will want for his getaway vehicles. Police spike strips wouldn't be effective against such tires, nor would bullet holes. I imagine the military would also want to fit them on wheeled vehicles going into harm's way: HMMWVs, MRAPs and armored cars.