Had to replace my fronts today at 17,000 miles.....outer treads gone....will have to get alignment at a Chrysler dealership (Tires Plus couldn't do it). Total bill for 2 Cooper Zeon Sport A/S W 400s installed came to $362.16. They were manufactured in Aug 08 ...smelled good!! They feel fantastic! Problem is they don't make them (yet?) in the rear size. The rears are wearing evenly & might get another 4-5,000 miles out of them.....I thought the rears had lots of tread left...till I saw how deep the Cooper's were.