No lettering info for the 1940 CGW lot eh? When did CGW change lettering schemes?
We don't know that they did. The problem is that we don't know that they didn't, and L-L is understandably reluctant to issue models with p/l based on speculation.
I suppose it would be a bit out of the question for a 1940 built car to sport a new scheme in 1944...(thinking of renumbering and backdating the P2K car).
Not impossible but highly unlikely; during WW II cars were in such demand (esp. flat cars) that they didn't get to the paint shop unless it was absolutely necessary.