I agree that all of the W126 diesels are surely the best diesels MB ever sold, but especially the 86-87's for the long wheelbase and added power / refinements.
I still to this day feel they were underpriced in relation to what their real value should've been.
2001 E430, Bourdeaux Red, Oyster interior.
1973 280SE 4.5, 170,000 miles. 568 Signal Red, Black MB Tex. "The Red Baron".