The Panzerkampfwagen VII Löwe (German for lion) was a super-heavy tank design created by Krupp for Nazi Germany during World War II, which did not make it past the initial blueprints.

Two variants of this tank were designed in turn:

Leichter Löwe (light version), which would have a crew of 5, weighing 76 tons, frontal armor 100 millimeters thick, a rear-mounted 105mm/L70 high-velocity cannon along with a coaxial machine gun, developing with its 1000-horsepower engine -the same as that mounted by the Schnellboot speedboats- a maximum speed of 27 kilometers per hour.

Schwerer Löwe (heavy version), same crew, engine, and armament -although with the turret mounted in the center of the chassis-, frontal armor 120 millimeters thick, weight of 90 tons, and top speed of 23 kilometers per hour.

Both models, to reduce costs, would use components mounted on the Tiger II, trusting that this new tank would eventually replace it. There were also suggestions, while the aforementioned Tiger II was being developed, of a version of the Löwe that would mount the KwK 43 L/71 gun and engine from said panzer, have frontal armor 140 millimeters thick, weigh 90 tons, and reach a maximum speed of 35 kilometers per hour. The dimensions of this version would be 7.74 meters long including the barrel, 3.83 meters wide, and 3.08 meters high.

Adolf Hitler, after reviewing the designs, ruled out the construction of the light version and ordered that the heavy one be redesigned to mount a 150-millimeter cannon, have 140-millimeter thick frontal armor, and a top speed of 30 kilometers per hour. However, the project ended up being canceled at the end of 1942, without even building prototypes, in favor of the enormous Maus.

Information from wikipedia.