Comparing: T23E3 vs. Panther/M10

Development started in April 1943. The prototype was manufactured in August 1944. Unlike its predecessor T23, this variant featured a torsion-bar suspension. The vehicle never entered mass production nor saw service.

During the preparation of Otto Skorzeny's Panzerbrigade 150 for the Ardennes offensive, four Panther tanks were disguised as M10 tank destroyers. The tank brigade was to carry out diversions deep behind the allied lines. All vehicles were lost during the battle with the 120th U.S. Infantry Regiment on February 21, 1945.