Tac,
The R107 and the W126 shared an awful lot of details and the W126 was designed to follow the design pattern which started in the R107, so they share a lot of of details. They were produced side-by-side for almost a decade.
@Richie: Nope, that was the follow-up, the W140 S-Class, an S350 Turbodiesel from 1993. Great cars, bad engines

A pity that those cars have become too expensive to run on a daily basis. 150 Euros a month in taxes alone was a bit too much. The one above is exempted from road taxes because of it's age (25+ years old), so it became more economical to run. (our liter price is your gallon price x 2