Thanks, I was tempted to go for cheaper tyres but decided it's probably not the right thing to do on an S Class !...there were a couple of really good deals on Michelins so it made it an easy decision to go for them. Even though I will never get close the limits of them, I had read goods things regarding ride and refinement - my top priority's on this type of car. The fronts are Nexen's that came with the car when i bought it and whilst they are extremely hard wearing, 5mm tread remaining after almost 30k miles , the new Michelins on the back do make them feel a bit inferior !..but will stick with them until they're worn out.