These tyres are airless and are scheduled to be out on the market very soon. The bad news for law enforcement is that spike strips will not work on these tyres. This is what great R&D will do, and just think of the impact on existing technology:

* No more valves
* No more air compressors at filling stations
* No more repair kits
* No more punctures or flat tyres
* No need for a spare

Such tyres do exist and have been dubbed "tweels". However, they are not new and Michelin has no immediate plans to release the tyres to consumers for use on normal vehicles. Development of the tyres over the last few years has focused on their suitability for use on low speed applications such as construction vehicles. Certainly, tyres based on the tweel concept may one day replace conventional tyres, but any such change is likely to be some years away