Incidentally, it should be noted that the Germans later used the captured Char B1s as flammenpanzers by replacing the 75mm gun with a nice, flamethrower. How extensive it was and how many there were, I do not know…
There were 24 B1 tank converted in Flampanzers.
The germans used almost any kind of french tracked and half tracked vehicle for conversion in specializated armor as self propelled howitzers, tankhunters, observation, personel carrier. Even some types the of lorries were armored and given to units stationed behind the atlantic wall, the name of this variants exceed the 100, almost deserve a topic for its own.
A little know fact is the french also toyed with the B1 flamethrowing tank, at list one prototipe was made in 1939.