After reading the Blitz Buggy article last night, I read through the remainder of the 1943 Liberty Magazine.  I found one of the articles very interesting, though it has nothing to do with jeeps.

Called “Motoring in Germany”, the article describes how gas rationing led to the conversion of automobiles into “gazogenes”, or vehicles powered by wood, gas, charcoal, and coke-burning.  The cars either towed trailers or had washing-machine sized attachments added to the back. Here’s the page below.