It's possible you're right but I don't know with absolute certainty.
This is the info I was working on, from the site I got the picture off:
QUOTE
1939 Simca Roux Speciale Barquette
Pre-dating the swoopy lines of the Jaguar XK120 by almost a decade, this one-off Simca Roux special was a competition barquette, based around the standard mechanicals of a Simca 8. With an aluminium body built by Ferrer et Lacoste in Bordeaux, to a design by driver and ‘garagiste’ Jean Roux, the special has a magnesium tubular frame. Post-war the Roux competed in many French motor sport events between 1948 and 1952, notably the Grand Prix du Roussillon, Angouleme, the Montlhery Bol d’Or, Les Sables d’Olonne and the Grand Prix de Bilbao, mainly at the hands of driver Pierre Larrue.
UNQUOTE
So the answer I was looking for is 1939; now that I have that we'll call it solved but if anyone has more information regarding the accuracy of its build-date then I would welcome more news.