Comparing: KV-5 vs. AMX 50 100

Development began in June 1941 at the Leningrad Kirov Plant and was completed by August, but plans were interrupted due to the complicated situation on the front. The KV-5 was to utilize some components of the KV-1. A new turret was designed, incorporating the 107-mm ZIS-6 gun. Two roadwheels and a single support roller were to be added on each side. A new 1,200 h.p. diesel engine was being developed for the vehicle, however it was not completed in time and was replaced with two V-2K engines.

The AMX 50 100 heavy tank was a further development of the M4 project. The first prototype was built in 1949. The 55-ton vehicle featured a 100-mm gun in the oscillating turret. The prototype was tested with gasoline and diesel engines from 1950 through 1952. The vehicle never entered mass production nor saw service.