Comparing: Pz.Kpfw. IV Ausf. D vs. AC 1 Sentinel

This modification of the Pz IV was developed in October 1939. The vehicle had enhanced armor and an improved, external gun mantlet. The tank was mass-produced until May 1940, with a total of 229 vehicles manufactured.

Developed in 1941 under the program for Australian cruiser tanks. There were plans to produce 2,000 vehicles, but from 1942 through 1943, only 65 vehicles, with serial numbers from 8001 to 8065, were manufactured. In July 1943, it was decided to stop development and cancel the program. The vehicles never saw combat and were used only for training purposes. In 1946, the tanks were removed from service.