Comparing: VK 30.01 (P) vs. Sherman Firefly

The Porsche company developed the concept of a new vehicle in 1939. On March 5, 1941, after numerous approvals, the company prepared blueprints and, in July 1941, produced the hull from mild steel. The hull and chassis (with detachable equipment for trenching) passed performance trials. One wooden prototype of the turret and one wooden prototype of the hull were manufactured. In 1942, the project was discontinued in favor of new heavy tanks.

A British version of the American M4 Sherman tank, developed in early 1944. It differed from the U.S. version by having a more powerful 17-pounder gun, different placement of the radio and ammunition, no bow gun, and no driver's assistant position. Between 2,100 and 2,300 vehicles of all modifications were built from 1944 through 1945.