Havent looked at this thread for ages, but reading the last post, couldn't resist
There already is a tyre war ! Always has being, always will be !
Look at the top lads pit tables and you'll see (as I did at the last meeting) masses of brand new tyres gluing up, no doubt with different inserts, tyre types etc, all to find the best performing combo.
For the average club racer, a foam tyre war is no different to a rubber one, with the exception that you (the average jo) will spend much less in the long run.
Top drivers (who possibly don't buy their own tyres ?) will always look for the extra speed and advantage if it doesn't hit them in the pocket. For the rest of us, anything that makes the hobby cheaper is good news IMO.
I too will be gluing new tyres for Sunday. Anyone who reckons older ones are as good is just kidding themselves, still won't win though