The 215/55R16 Conti-Extremes on my Saab 9-5 will need replacing. Since I wasn't that impressed with these High Performance All-Season tires, I'm in the market for a true summer tire. I was pleased with the Yoko AVS ES100s (great bang for the buck factor) I had on my 9-3 Saab, but they don't come in the size I need for the 9-5. I noticed tirerack now carrys Avon, which appear to in the same market as Yokos and Kuhmos. Excellent value, but not top tier. Anyone have long-term feedback on Avons, specifically their summer slicks, M500?