Go for it. The W116's will only get more rare with time. You have to look pretty hard to see them on the road today. Other than mine, I have really only seen 3 or 4 other ones in the Philadelphia area on my local roads in the last year! In my opinion the level of interior comfort has yet to be matched by any. Most have power windows and a sunroof. The A/C can be a hassle when it is in need of repair. But if you don't skimp and you have it correctly repaired you're in good shape. The diesels are pretty simple and straightforward. The same engine (with minor modifications) was used in the W126 and W123 cars up until late 1985.

These cars love the highway. This is truly one autobahn cruiser that has not gotten the attention it deserves over the years. These cars are overwhelmingly stylized and easily pass as modern classics. If you get one, you will not regret it. Look for one that has been garaged. These cars are built well but from the look of some that I have seen the weather can get to them if they are not taken care of. I've never had any issues like that with my car. The original paint still glistens in the sunlight. Even the original rims still have the shiny clearcoat from the factory.

In closing...I would reccomend to go out and drive one and get a feel.