Laurel and Hardy drive a “jeep”. This movie was made just as jeeps were being introduced to the Army.  Since none were available to the movie industry–the move industry made their own.
Some would say that the jeep was an evolutionary vehicle stemming from types originally produced for WWI.  However those vehicles were large slow and cumbersome.  Even by WW2 most 4×4 vehicles were too large too serve as reconnaissance vehicles.  Producing a 1/4-ton vehicle with 4×4 capability was quite revolutionary.  That’s why the US Army and the allies were so pleased with it.  You can read more about the revolutionary story in the following two books.  The first one, Jeep – Its development and procurement under the Quartermaster Corps, 1940-1942, was actually written during WW2 and is a great perspective on the jeep. The second really good book is call, Project Management in History: The First Jeep (Project Management in History Series) (Volume 1), is a book about project management…but don’t let that put you off.  The book is a great retelling of the Bantam story and how they produced the first jeep for the US Army to test. The Chief of Infantry in 1941 was satisfied with it.  However, because Bantam was a very weak company the government felt a stronger producer was needed.  Ford was the first choice but Willys was the low bidder and the rest is history.