A propos cars on album-covers: does our francophone members know the chansonnier Serge Davigniac?

A Belgian NSU-freak has shown around album-covers of him, where always were NSU's in the background. On one pic he sits in one.
One "cover-car" is a 1967 NSU TT in geminimetallic with Belgian plates.

Yes, a Mercedes. I'm very sure, that it's a [W116], an earlier one due the full-chrome door handles.

Anyone able to identify the make and model? On the cover of Arcade Fire's recent album. I assume it's a Mercedes from the headrests.

http://rockonthestreets.com/wp-content/uploads/2010/05/Arcade-Fire-The-Suburbs.png