After 28,000 miles I need to replace these as the treadwear will not pass state inspection (TX). Not quite the advertised mileage, but cayennes typically go through tires quickly. These have lasted much longer than the Continentals that it came with. Ride is excellent and mine has the adjustable air suspension and the tires drive and ride great on the highway but can grip surprisingly well on the stiffer suspension settings. They also perform quite well off-road. I've even driven on pure dirt roads with no issues and have been able to drive through muddy roads with ruts and larger puddles without issue. These are by no stretch mud tires, but with the cayenne diff locked and in the low range it has never gotten me stuck in the woods under conditions my brother's Ford has. I've also towed (up to 4000 pounds)with these tires with no issues on sway. Despite a bit lower mileage than some folks have gotten on these tires I'm very pleased with them and will most likely buy again after some research to see what else is out there now after 3 years. I have no ice or snow experience with these tires, however. Wear has been pretty even despite me driving hard on certain roads (it's a Porsche after all!).