Tires have gotten quite a bit better. I have 50k miles in 2years on my current tires and they look like they are basically brand new still. I don't see any reason they won't make it to 70k+ miles or ...
Tires might be one of the more prosaic parts of a car, but they are undoubtedly among the most important. Bench racers might obsess about powertrain specs, and average consumers mostly want to know ...