Comparing: AT 8 vs. SU-100 vs. SU-100Y

The vehicle was conceived as a breakthrough tank. The design project evolved from the AT-7 project, and both projects were submitted at the same time. No prototypes were built because the A39 Tortoise was preferred.

Tank destroyer on the basis of the T-34-85 and SU-85 with a total of 2,495 vehicles produced from September 1944 through June 1945. After the vehicle saw service, the Red Army praised it as a very effective tank destroyer with strong firepower, which could stand against any mass-produced German armored vehicle.

Developed on the basis of the T-100 heavy tank. The vehicle was intended to neutralize enemy pillboxes and destroy enemy vehicles. The only prototype was manufactured in March 1940. The vehicle never entered mass production.