The car in the picture with the blue/white "wreath" livery, is / has a varied interesting history... how do I know?? because my late father owned it
"NPO" is it became to be known, was bought as an ex W.Rorhl car, and then used by Darniche in the WRC before going to a Portuguese team until '83. It then came to the UK before going to the US and then back to the UK when Dad bought it. It was found the chassis (at least) was used in '78 Tour de Corse, among others and then modified with a new shell and wider body kit etc.
Dad did an extensive history of the car, including all modifications, and alterations, and then how it was restored back to its as near original state as possible before sale. The car was sold to a European Rally Champion driver and then on to another WRC Champion (who I will keep anon.)
I can also add that this very car was used in Colin McRae "DIRT" in 2006 ... it was taken and photographed and modelled by the game company, as well as run in a sound booth and recorded.