Comparing: Pz.Sfl. IVc vs. S35 CA vs. SU-85

Proposed antiaircraft vehicle mounting the 88-mm antiaircraft gun. Development started in Germany in 1941. The vehicle was based on the Pz.Sfl.IVc chassis. The operational requirements for the vehicle were constantly changed, and the FlaK 41 gun was mounted on the chassis only in 1944. The vehicle was to be the basis of variants with other armament alternatives. However, the plan was never implemented. Only three prototypes were manufactured.

The design called for the conversion of tanks into tank destroyers by mounting a 17-pounder gun into an open-topped, lightly armored cabin.

Developed on the basis of the T-34 medium tank and the SU-122 assault gun. Produced from August 1943 through July 1944. The 85-mm D-5S gun allowed the SU-85 to effectively hit enemy medium tanks at distances of more than 1,000 meters and to penetrate the front armor of heavy tanks at shorter distances.