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Both have effective gates. The top employs an iron gate with a piston mechanism, while the bottom employs a portal as the gate (mobs cannot pass through portal blocks).

EDIT: Apparently they can :/

Never uploaded to Flickr :/

Never uploaded to Flickr :/

The Willys MB US Army Jeep was manufactured from 1941 to 1945. The small four-wheel drive utility vehicles are considered the iconic World War II Jeep, and inspired many similar light utility vehicles. Over the years, the World War II Jeep later evolved into the "CJ" civilian Jeep. Its counterpart in the German army was the Volkswagen Kübelwagen, also based on a small automobile, but which used an air-cooled engine and lacked 4 wheel drive.

Comfortably fits 2 figs in front, and 1-2 depending on seating arrangement in back (2 if both figs are on the edge), and all wheels roll smoothly. The canopy from the Indiana Jones Shanghai set could hypothetically fit over the two in the front, but the one I have is ripped so I didn't make it a priority to try. Also, all of the dark grey you see is old dark grey.