New to a 1995 E320 Cab. Not sure I have a problem or it is just the nature of the car. I get what I think is excessive vibration in the steering wheel that feels more like a shutter when I go over bumps or rougher roads. Almost like a shimmy. There is a lot of body flex compared to a sedan. I installed a new steering damper but no change. Is this just the nature of the Cab? Struts seem OK and steering is tight. Tires are 4 years old with 10K and the car only has 55k. Sure is different than my sedan. I expected some difference but thought a Benz convertible would be pretty tight and not so much flex. Any thoughts?