I think if I were to go to a diesel I would get a tried and true VW turbo diesel. Even the old ones go forever, i've seen many with over 400k and still running strong. Not very fast, but handling is not TOO bad if you modify it a bit. Infact if I could sell my car that's what I will buy, but no one wants my car. NO one here wants a performance sedan, or if they do it's gotta be an import.
EDIT - I mean here as in my area (winnipeg MB)