Comparing: Pz.Kpfw. IV Schmalturm vs. Type 4 Chi-To

In November 1944 the Krupp company presented several avant-projects aimed to upgrade armament of tanks and tank destroyers in service. Among them there was a project of mounting a Panther's Schmalturm (tight turret) on the Pz IV Ausf. J. The project was canceled due to phasing out the Pz IV production.

The Type 4 Chi-To medium tank was developed in 1943 on the basis of the Chi-Nu. The tank was conceived to replace the Chi-Ha. However, mass production was not launched due to shortages of materials and components. A total of six chassis were produced, and only two tanks were built on their basis.