1.1 = 1.0 seat with the spring adjustment TSB applied. So if the car comes 1.0/1.1 seats, just ask them if the spring TSB was previously applied to the seat and if not, have them apply it. Thus, 1.0/1.1 vs. 1.5 is a better place to compare against. There, basically if it has AutoPilot, it would 1.5/2.0 and if it doesn't have AutoPilot, it is 1.0/1.1.