Our 2013 S85 is in the Service Center for a number of issues: rear seat belt tensioners locking and not releasing two tires mounted on backwards intermittent TPMS readings "Car needs service: Car may not restart" "Acceleration and top speed reduced" "Regenerative braking system disabled" I picked up a 2019 S75D loaner with just 17K miles on it and I'm afraid I'm in love. Next-gen textile seats, sub-zero package, UHFS, unrestricted SuC speeds, ambient lighting, hi-res display/MCU2/LTE, Netflix/Hulu/Youtube/Twitch streaming, and a young SAS air suspension system. The car feels much more solid, cushioned, with much reduced body roll. I'm not sure if the SAS has been greatly revised and improved between 2013 and 2019 or if mine is just worn out. Our suspension feels less dampened and much more float sensation with body roll. I started looking into replacement components and stumbled on what appears to be a bargain-basement option from Suncore: Suncore Industries - Front & Rear Suspension OEM Remanufactured Air Struts - 2012-2015 Tesla Model S Has anyone given these a shot? These reman are much less than the parts counter at Tesla and $862.50 is a bargain for any car. I'd bite if these would give me the same tight and dampened ride that this loaner is offering.