After 55,000 on this set of Symmetrys, I traded in my Cadillac. These tires were bought, because the OEM Michelin Symmetrys went 98,000 miles! These tires were wonderful. The Cadillac suspension is very precise because of the construction of the suspension pieces. There is no variance or slop and play in the suspension. For that reason, the tires can work as they were designed, and last an incredibly long time. In fact, they are so good, I couldn't tell you what I paid for them. In other words, Quality is long remembered after the price is forgotten.