Developed from 1935 through 1940. The vehicle was comparable to the T-34 in terms of its characteristics. Among several presented prototypes, the Renault G1R project was eventually selected. The vehicle had individual torsion-bar suspension and an innovative gun-mounting scheme. A prototype was built by 1940. However, the development was stopped when France was defeated later that year.
Characteristics are specified for vehicles with crews trained to 100%.