60K on Turanza LS's is very impressive. I had a set of Turanza LS-V's on my old car and they were GONE by 45K miles. By GONE I mean the rear two had no visible tread remaining at all, and the front two were the same. There was a faint trace of where the tread pattern once was. It was summer time and I was poorer then, and only taking short trips, so I just kept driving on them until finally the belts started to come through on the front tires.
That said, they were *excellent* tires, until the bitter end. In their younger days, they were so sticky that driving in a downpour felt like driving on a clear summer day. I was very impressed that a tire that could handle so well had such a comfortable and smooth highway ride, as well. A very impressive tire, all around.
Unfortunately, I decided to replace them with Goodyear Assurance TripleTreds, which I have now deemed as The Worst Tire in the World. I have never been less satisfied with a tire, ever. The noise was horrible, the dry traction was horrible, the wet grip was non-existent, I can only imagine how bad they'd be in the snow, luckily I never got the chance to find out. I returned them to goodyear after 8,000 miles on a warranty claim, they kept losing their balance (god knows how) and despite unnecessarily replacing numerous suspension components and having them rebalanced, I could not get rid of the vibration. I gave the credit to my dad so he could buy new tires for his truck, and I put a set of used Eagle GA's on the car that were better than those stupid Assurance tires.
My new car has a set of Goodyear Eagle LS2's, which are OK; but I'll probably be replacing them with another set of Turanza's (I think they only make the Turanza Serenity or something in the size I need) when their time is up.