Comparing: E 50 vs. Leopard Prototyp A vs. T-54

In 1945 the E 50 was conceived as a standard medium tank of the Panzerwaffe to replace the Panther and Panther II. It existed only in blueprints.

Prototype developed from 1960 through 1961 as a medium tank for the Bundeswehr, with a total of 26 prototypes manufactured. The prototypes were tested up to 1963. The vehicle was the predecessor of the Leopard medium tank.

The first prototype was constructed at the end of 1944. After successful trials in 1945–1947 the T-54 mod. 1947 was adopted for service. 713 vehicles were constructed before production was phased out. In 1949 production of a new variant was launched.