When shopping for new tires from tirerack.com, the production date of the tires is listed.
I'm considering tires from a 2007 production run, which would make them around 5 years old today (after damaging a tire, I'm looking at buying a pair of the same tires to match whats already on the car).
I change tires seasonally between high performance summer and studless snow/ice, so a given set of tires can last me quite a while. I'd expect to get 4 seasons out of these (i.e. four more calendar years).
How old is too old for a passenger car tire? How old would a "new tire" have to be before you passed it over?