Renault 4x4 Bimoteur Muschang, 1967. Leopold Muschang was a belgian Renault dealer, based in Arlon. He made a prototype based on the Renault 4 platform and engine, with SINPAR 4x4 transmission.
Then in 1967, he shown the prototype with this body, and made 2nd in Rallye des Cimes. In 1968, he made it again, and won. Three versions was announced : 4x2, 4x4 with one engine, or 4x4 with two engines.
It seems that Apal was interested to produce it, but as far as I know, it came to nothing.