The kit is of course of exceptional quality; but WNW forgot one element on the Benz engine... Guess what?
See below...
...
...
...
...
...
...
Here is it (not glued yet):

the "tube" (sorry, don't know the correct word in English) for the electric wires (one for each face).
Detail found by my friend Osterkamp (another member of the "Belgian Bad Boys"...)
Of course, the kit remains an splendid jewel
Osterkamp came house yesterday and we've worked on the realisation of those parts: first a drawing, then the use of offset foil. The part realised must be folded.
Patience needed, and good nerves... approximatively 15 attempts for 4 useable parts, because when folding the parts broked...