I'm a first time buyer...looking into the E-class because of its roominess, economy and reliability. My problem is, i'm not sure which E-class I would like. What are some of the characteristics of the E-class diesels ? is there any best year or pitfalls? How is the performance, especially compared to the W126 diesels? Also, what are the differences, advantages/disadvantages between the early 300E and the later E320. I'm looking primarily at W124 because I have been scared away from the W210 by various articles, plus the classic styling of the 124 appeals to me more. Any feedback would be appreciated !