I think the SD is a very nice car! When I got mine a month ago, it was my first MB and my first diesel, but I'm starting to get into it, and I'm enjoying my ownership experience so far and naturally planning a few key DIY repair in the near future. I also have a '87 Saab 900 in my stable, and I must say it's probably more difficult to work on the Saab than on the Benz from my experiences so far. The Saab is a much smaller car and more tightly packed and can be a pain to get to things. On the SD, however, there's quite a bit more room to operate, which I am finding much more enjoyable!