Comparing: T40 vs. Marder 38T vs. Somua SAu 40

Experimental tank destroyer developed on the basis of the M3 tank in the spring of 1942. The vehicle never entered mass production, nor saw service.

Developed on the basis of the Pz.Kpfw. 38 (t) tank. Either a Pak 40 or Pak 36(r) gun was mounted in a cabin with an open top and back. The vehicle entered service at the end of 1942. This tank destroyer was mass-produced until the middle of 1944 and was used until the end of the war.

A proposed tank destroyer on the basis of the Somua S35. Existed only in blueprints.