I just leased an IS 250 2015 Lexus and the seat is killing my back!!! I have an old back injury in my upper back (compression fracture). Prior to the Lexus, I drove a Chrysler 200 for 3 years and had no issues what so ever. I have no idea on what I can do - I know I cannot drive this vehicle for 3 year with such severe back pain!!! Anyone have any suggestions?