Comparing: T-54 first prototype vs. Centurion Mk. I

Developed at Factory No. 183 in 1944. It was based on the T-44, with many components modified to enhance the armor and armament of the new vehicle. According to one source, the first prototype was built at the end of 1944. However, some other sources mention another date—January 1945. The tank underwent trials in March and April 1945, but never entered mass production.

Development of the Centurion started in 1943. The vehicle was designed as a "universal tank" to replace existing infantry and cruiser tanks. The Centurion was the first British vehicle that featured sloped armor plates. The tank entered service in 1947. A total of 100 vehicles of this series were manufactured from 1945 through 1946.