If you go to Tire Rack's website, compare the "Treadlife Warranty" for the Continental Conti Touring Contact CW95 Grand Touring All-Season Tire (60,000 miles) with the Michelin Pilot Sport 2 Tire (NONE) to see which manufacturer is more confident of their tire's durability! Also, the prices are very comparable for both. My AST's seem to grip well in cold, heat and rain (no snow, yet) in Southern California!