if they are garaged and pampered..my Dad has a 76 with 50k miles ..battery tender and no moisture..runs like a top!Wow!
Miracles can happen!!
I have a friend who has (not just one but 2) MB Bs, and those damned things are horrible. I've tried to help him here and there, but he doesn't live close anymore. Doesn't help that he's not mechanically inclined.
My issue with those cars is their design. The carbs, for example. It's like someone over in Britain said "chaps, we all know that a carb just mixes air and fuel. It's dead-bang simple. Let us endeavour design a device which does that stuff (poorly) and does it in the most bass-ackward way possible."
Brits are definitely not known for good engineering.