Our S85 will be 4 years old the first week in February. Took it in for the last service and also purchased the extended 4 year warranty, as we plan to have the car another 5 - 6 years. With all the updates and service, our car drives as good or better than it did 4 years ago. They have ordered a couple of things that will be replaced under the original warranty, including a new driver's seat. Mine "popped" about a year ago, and we found a piece of plastic, about 1 1/2 inch long under the seat. When turning in the seat to reach for something in the back (it is where I usually put the sun screen) it pops in the lumbar area most of the time, so they ordered a complete new seat. I realized that other than the little extra pep that the P90D loaner had, my car rides just as good, is actually quieter, with an equally good build quality. Of course I am missing a few of the newest bells and whistles, but the service center remarks when I bring the car in that it still looks new. There was some confusion about when I had to purchase the extended warranty. I finally was informed that we needed to purchase it at least 30 days BEFORE the original warranty expired. Also, there was a question regarding the air suspension being included, but it was verified it was included by an email from corporate before I purchased the extended warranty. We are looking forward to the next 4 years with peace of mind with the new warranty.