Panzer VIII Maus
Panzerkampfwagen VIII Maus ("Mouse") was a German World War II super-heavy tank completed in late 1944. It is the heaviest fully enclosed armoured fighting vehicle ever built. Five were ordered, but only two hulls and one turret were completed before the testing grounds were captured by advancing Soviet military forces.
Tanks in the Italian Army
The order to design and produce the first Italian tanks was accepted by the FIAT automobile company in 1916. The Fiat 2000 - Model 17 was conceived by Fiat as a private venture in October 1916 and some feel the finest heavy tank built in WW1. The first prototype was ready in June 1917. Fiat donated 2 tanks to Italian Army in February 1918 but the Fiat 2000 never saw combat. Total production until the end of 1919 encompassed 6 vehicles. The prototype of the new tank was displayed to a military commission on 21 June 1917; its mechanical systems were complete but its superstructure was added later, being represented on the prototype by a wooden mockup with a conical open turret and dummy gun. The final configuration of the superstructure was not completed until 1918.The FIAT 2000 was a substantial vehicle, of comparable dimensions to the British Mark V tanks, and weighing 40 tons as compared to the Mark V's 28 tons.