Formally presented through opening of FIATs Mirafiori plant in-may 1939, the AB 40 was, during those times, one thing of a cutting-edge car. Due to revolutionary solutions particularly dual drive and additional tires mounted as basic to help overcome hurdles, it proved a match for just about any global rival in identical program. The AB 41 variation, introduced in 1941, included some improvements, yet its primary gun (a 20 mm Breda 35 cannon) remained exactly the same.