Hmm, that Citroën-Kégresse puts me in mind of the 1934 Bedaux Canadian Subarctic Expedition
New 1/35 ARL39 kit...
Responding to a really old post, I know but I somehow missed this one the first time around ...
The Atelier de Rueil was better-known for its cast turrets. In October 1939, 72 x ARL 39 (75 mm APX gun) were ordered (with 36 more added later) for the newly-formed DCR (from
Divisions CuiRassée or Armoured Divisions). [1] These SP guns were to work alongside the
Char B1 bis heavies and Hotchkiss H35 light tanks of the DCR. At the same time, [2] the Somua S35-based SAu 40 (47 mm SA Mle 37) was ordered in similar numbers for the cavalry units of the DLM (
divisions légères mécaniques or Light Mechanized Divisions).
AFAIK, no ARL 39 was ever completed (since tanks were given higher priority than SP guns). One prototype of the Somua SAu 40 was built (or converted?).
_________________________
[1] Wikipedia says the SAu 40 order was placed on 01 May 1940. I suspect that this refers to bumping up the order to 72 x SAu 40s (from the original, Oct 1939 order for 36 vehicles).
[2] The DCR were originally defined as
divisions lourdes mécaniques (Heavy Mechanized Divisions) by
général Gamelin.
https://fr.m.wikipedia.org/wiki/Division_cuirassée