At the same time the Army sought a cheap light tank sourced mostly from national parts and reused frames from its aging M3 Stuarts. The result was Bernardini’s and Biselli’s X1 Carcará, the first national treaded armored vehicle. Mismanagement, corruption and import restrictions meant only a few dozen were made, finding their place just as training vehicles. At the end of the decade Bernardini derived a rocket launcher from it, the XLF-40, which did not go beyond prototype stage. Engesa had a secondary role in this, as it would originally provide the turrets for the X1 line.
Outside of armor, the company also designed and designed vehicles in the jeep, tractor and truck sectors. The latter also found their way into foreign militaries.