Germany&#x27;s 105mm Dicker &quot;Fat&quot; Max SP gun. This monster was initially intended to destroy bunkers. Two prototypes were built in the spring of 1941. Later the vehicle was redesignated a heavy tank destroyer. While never put into mass production, the 2 prototypes fought against Allied forces on the Eastern Front. She had a crew of 5, a 180hp (400cid) 6-cyl water-cooled engine, and was built on the Panzer IV chassis. Weighing in at 22 tons, she had a top speed of 17mph...