You mentioned three years but not the mileage. Are the tire well-worn? Our Michelins on our '08 had about 28K miles on them when we swapped for the '11. I did not notice an increase in noise or performance over time. We didn't 'push' that car but found the performance of the tires to be adequate.Does anyone have any probs with "tire noise"? Has anyone found tires that cut down on this without cutting back on performance?