I looked at these randomly one day as it does seem like a good bit of car for the money. Right wheels, right colour it looks just as good as today, was behind one last week. BUT yes they can be expensive to fix so I prob wouldn't do it. And ...correct me if I'm wrong, bearing in mind I just glanced at figures, the 350Z on the older SL350s, is slightly quicker in performance? (bearing in mind the merc was a £70K and then add your options).