This tire came on my car new. I travel for work and have put 60,000 miles in 2 years on these tires. I could easily get another 15,000 out of them but I have a nail in the sidewall and since the car is AWD I need to replace all 4. I am the kind of guy who's always looking to improve and I used to be an engineer for a race team so I'd say I have a worthwhile opinion! But these tires have been excellent and I have no desire to try anything else.