got a question for some of you MB experts. I have owned my "tank" for 130K. white w/ burgundy interior. runs great good interior. well maintained, put a quart of Duralube in when I change oil and cetane booster every tank of fuel. I would like to find someone to take care of the old girl. I own six cars and need to get rid of a couple. How much is this worth or should I just run her til she drops.