The British one carries two scout cars (one on each side).
Yep, they are really big, but it had no competition... the 12" tall Overseer tripod with the Sun Gun which can fire 60".
BTW... seems the chap who does Paper Terrain, Scott is his name I believe, intends to do some paper terrain of the walls you see in the photos. He has already done a couple farm houses, city buildings, school and a church... all done in 1910 US style to support the game.