I've no idea. I was so surprised to see them that I didn't take note of why they were there. It wasn't obvious. They had stickers for the R4 Thenay meeting in the windows. I think they were both 1975. Must go back and see.
Well spotted Bobble. The car is LHD as you can see from this photo. By looking very carefully at one of the van photos I can just see the top of the steering wheel above the RHS Thenay 2013 card.
I think that you will find that the F6 is an 80's model, no door hinges visible, different wheels and sidelights/indicators, but
still really nice to see.