I have a completely different question.: Of the various S-Class I had, I am used to it, that it is within… so it is wonderfully quiet when the doors are closed. Sure.: Something you don’t really notice when you’re on a test drive. It only comes later. You literally feel like there are two different worlds when/after the doors are closed.: The –> outside the vehicle…and the –> inside the vehicle.! That’s how I always felt and enjoyed it properly. Magnificent.! ######### Question now.: What is THAT like with an SL R 129? With closed hardtop.? Is there a similar effect.? Similar quiet.? Or is there wind noise, lower noise insulation like S-Class, etc.??