I believe the Bugre SS in your photos is the original Series I model from 1971 with the flat front and VW Variant/SP-style twin headlamp units. The Series 2 SS had more of a Puma-inspired front, as per this Puzzle car.
That said, for the moment only Jotage seems to know the real answer to this Puzzle, but as he doesn't seem to this site very often, it might be a while before all know the accurate solution.