I've had several..what I really miss on my 230SL was the ability to do most of the basic mechanical work myself...with a decent set of tools and a timing light....all I needed..Now, I need a computer just to open the hood..
And the computer does not work. Germans are skilled in building machines but not in programming computers. Mercedes had really bad tests the recent years since their electronic stuff was not perfect.
The last ADAC (The German Automobile club) test was the first positive one since 6 or 7 years.
P.S. Personally I hate that electronic stuff.