Comparing: AT 15A vs. E 25

Assault tank conceived for breakthrough attacks on enemy fortifications. The design project was ready on October 5, 1943. No prototypes were built. However, the project became the basis for the A39 Tortoise heavy assault tank.

Development of the E 25 was a part of the "E" program, aimed at unifying the manufacture of the German armored forces. The program was supervised by the Waffenprüfamt 6 committee, directed by General Kniepkamp. The E 25 was developed by the Argus company (Karlsruhe, Germany). No prototypes were manufactured, the vehicle never underwent trials or saw service. However, according to some sources, by January 23, 1945, several hulls were produced and remained in Katowice waiting for trials.