Purchased these tires thru TireRack to replace the P Zero Nero's on the X3 when I bought it used. (96K miles, now at 103K after 4 months!) We took the X on a 1200-mile road trip with the Pirellis still on it, then changed to the PA31s just before the winter driving season. (Oregon allows AWD passenger vehicles with M&S tires to opt out of chains when otherwise required, but I wanted new, deep tread to feel comfortable!) Driving away from the tire shop after the changeover, the difference in the feel became apparent at the curb, pulling onto the street/highway. Literally. The ride with the M Sport package was expected to be firm, even downsized to 235/50-18, but with the Pirellis it was still pretty jarring. This tire was instantly more comfortable, both from a ride and noise standpoint. Road trip to San Diego (2000 miles R/T) was very smooth, and the tires were equally at home at 80 on the freeway and through sweeping curves. Absolutely no tramlining on grooved pavement, which we hit several times on that trip. The first snow of the year was followed by very cold air, which kept snow on the ground for a week -- very unusual for this area, but a great chance to try out the tire and the AWD on the X3. Both excellent in over 6 of snow. Not Blizzaks, to be sure, but I was pleasantly surprised with test stops, up to activating the ABS. Haven't measured tread depth after 6K miles but still look and feel very good. I was nervous about buying Kumho for this demanding an application, but have since bought a set for my son's Subaru, and will consider for other vehicles as well. Pretty unbeatable for the money.