are you the first owner of your S500?

your 500 is a large heavy car with shocks and rubber bushings calibrated to control things at serious speeds, and over the years you may have gotten some deterioration of these components.

Now the S55, beefed up AMG or not, has a very sophisticated air-sprung suspension, arguably the finest luxury set-up in production, low profile tires no matter, your comparing cars with a generation difference in technology.

Nice thing about your car, when knowledgeable persons tell you it's time to replace the rubber components of the suspension your car will set-up like new.