Hi Derek:
Here I was looking up the trailer and the two tanks 'cause the Faun was just too obvious!
Well, now that I know you want the photographer's vehicle I think I can help out... it is definitely, absotively, posolutely a:
Schutzengrabenvernichtungsautomobile IIIF mit kugelblitz und strudelenanhanger*

Mike
*for the non Hunnish amongst us:
Shootingditchclimbingdestructioncar IIIF with lightening (for the flash photography) and pastry trailer.