The Michelins replaced General UHP tires which handled much better - but got noisy after about 25,000 miles. The Michelins have a higher sidewall even though they're the same size. So it's softer riding and much quieter. But I'm giving up on performance. Handling dynamics have changed - more understeer. The grip on the Altimax UHPs were progressive - telegraphing when they're about to break loose. The Michelins break loose a bit more abruptly. So the tire require a less sprited driving style. Perhaps not a fair comparison - comparing high performance summer tires with all seasons. Too soon to tell if there's any difference in fuel consumption. I expect a longer treadlife based on my previous experience with Michelins MXV's on a different car. I'll update this review after I've had experience driving the car in wet conditions.