Thanks guys... all of you have been most helpfull in answering my question. As you may have noticed I already purchased a '93 190 2.3. It is in excellent condition with 78,000 actual miles. The interior is like new and the previous owner took it in for service whether it needed it or not.
The only concern I have is that the car has a lot of road noise that my 300E does not have. Particularly I hear the exaust especially when accelerating. I suspect the 190E is not sound insulated as well as the 300E.
Also the 190E does not seem to shift as smoothly as the 300E. It shifts smoothly if acceleration is gentle but is more quick and abrupt if given a heavier pedal.
My main concern is with the noise level. It's like a drone sound that comes from the trunk area. Is this normal for the 190 or might a consequence of some other condition. It is definately the exaust that I hear. If at high speed, I drop the car into neutral and let the car coast at idle speed... then the drone goes away... but returns if I rev the engine while coasting.
Can anyone shed light on these two conditions? I am happy with the car and it is a beauty... beautiful green paint with beige interior. I just put new tires on it because the ones on it were getting brittle although they still had plenty of tread.
Again thanks.