Help please!

[David_Hayward (RIP)]

Can I please have some assistance with this conundrum? I have just got back from Cumbria working on the new Pearson's of Liverpool book, with plenty of CMPs, wartime and post-war (and Canadian Jeeps, Diamond Ts) for you deliction. However this photo is defeating interpretation. It is from June 1945, and shows what appears to be a very high quality rebuild of an office (we have three views). It now has Lucas lights, a "tank" on the roof, different hubs front and rear, twin tanks, and what looks like a tax disc! However the driver's wiper blade is missing! I am stumped...we have had suggestions before that as it is Winterized it might have been intended for Norway.