On 6 June 1937, the project was considered by the "Conseil Supérieur de la Guerre" as a possible battle tank to equip the future "Divisions Cuirassées", the armoured divisions of the Infantry. During 1937 and 1938, the company rebuilt the vehicle, changing the suspension and cooperating with ARL to install a 280 hp Hispano-Suiza engine. Pictures show this rebuilt design had six large road wheels per side. Besides the hull armament, the placement of an APX4 turret, armed with a 47 mm SA35 gun, was ordered by the commission on 24 May 1938, together with the placement of a radio set. The dimensions of the prototype were also slightly changed: the width decreased from 2.94 m to 2.92 m and the height from 2,76 to 2.73. The larger turret was partly compensated by decreasing hull height from 183 to 174 cm.