funny you mention about the rust, because this one I am looking at does have some rust on it, but my 98 diesel is spotless.....I was quite surprised to see rust on a 7 year old benz, and not in the usual places, on some vertical seams, where you would not think of looking.
my wife also said an interesting comment, she has trouble seeing, she says the seat is rather low, when our 98 is basically the identical car and she can drive that one fine......