Excelsior
At the end of 1942, the Churchill tank’s armament was deemed insufficient. New tanks, the A31, A32, and A33 were developed as new infantry tanks. The A33 was developed by the English Electric Company. The LMS Company participated in the development of suspension for a new tank. Two vehicles, which differed greatly from each other, were manufactured. The A33 was set to go into production, but in 1943 the decision to cancel mass production of the Churchill was reversed, and the order for the A33 was not placed.

Sexton I
In 1943 the Montreal Locomotive Works started mass production of the Sexton SPG, developed on the basis of RAM II. A total of 2150 vehicles were produced by 1945, of which 125 were designated the Sexton I.

Aufklärungspanzer Panther
Planned heavy reconnaissance vehicle. The plans called for using the Panther hull in order to facilitate rapid mass production. The vehicle was to feature the Leopard turret with a gun not longer than the tank’s hull, which was to ensure maneuverability in forested terrain. No prototypes were built.

Durchbruchswagen 2
Prototype heavy tank. Developed by the Henschel und Sohn Company as part of a heavy tank program. A prototype was built in 1938. However, in September 1939 the VK 30.01 project was preferred, and the DW program was officially canceled. Nevertheless, the DW I and DW II prototypes were used extensively for testing purposes until 1941.

Indien-Panzer
The project was developed as a medium tank for the Indian Army. The work on the project was carried out by Porsche, Daimler-Benz, and Zahnradfabrik AG of Friedrichshafen. However, the vehicle was deemed to be too complicated for production in India, and the project was canceled.

Leopard 1
Main battle tank of the Federal Republic of Germany. Development was started in 1956. The first prototypes were built in 1965 at the Krauss-Maffei factory. The Leopard 1 was in service in more than 10 countries.

Leopard prototyp A
Prototype developed from 1961 through 1962 as a medium tank for the Bundeswehr, with a total of 26 prototypes manufactured. The prototypes were tested up to 1963. The vehicle was the predecessor of the Leopard medium tank.

VK 20.01 (D)
Prototype of a medium tank developed by Daimler-Benz from 1939 through 1941. The new vehicle was to become a new standard medium tank of the Wehrmacht. The prototype was deployed on the Eastern front. Combat testing revealed a number of serious faults. In 1941 the tank was deemed obsolete, and the project was canceled.

VK 30.01 (D)
In the winter of 1941–1942 the WaPrüf 6 issued technical requirements for a new 30-ton tank. The orders for development were placed with MAN and Daimler-Benz. The prototypes were to be ready by May 1942. However, on May 13th, 1942 only comparative characteristics of the projects were submitted. The MAN’s project was preferred, and the Daimler-Benz’s project was canceled.

VK 72.01 (K)
A superheavy tank with rear placement of the turret. Developed by the Krupp company. A new vehicle was to have stronger armament and enhanced armor compared to the VK 70.01. Existed only in blueprints.

M60
The M60 was a deep modernization of the M48 tank. Development of the prototype was started in 1957, and in 1959 the order for production of the first tank was placed with Chrysler.

Object 907
The decision to start the development of medium tanks of a new generation was made on December 13th, 1953. Development was carried out by Research Institute No. 100. The project was submitted in March 1953, and at the beginning of 1955 the hull of a new vehicle was tested for shell resistance. However, later the project was canceled.

T-60
Developed in August 1941 at the Construction Bureau of Plant No. 37 under the supervision of N. A. Astrov. The vehicle came into service in September 1941, and was mass-produced until February 1943, with a total of 5920 vehicles manufactured. The T-60 tank was in service until the end of the war.

T-70
Developed in October and November 1941 at the Construction Bureau of the Gorky Automobile Plant under the supervision of N. A. Astrov. The vehicle came into service in January 1942, and it was mass-produced until October 1943, with a total of 8231 vehicles manufactured. Some vehicles were used until the end of the war.

T-80
Developed in the summer and fall of 1941 at the Construction Bureau of the Gorky Automobile Plant under the supervision of N. A. Astrov. The vehicle came into service in December 1942. A total of 85 vehicles were mass-produced.