Officially presented within opening of FIAT’s Mirafiori plant in-may 1939, the AB 40 ended up being, during those times, a very important factor of a cutting-edge vehicle. Because of innovative solutions such as for instance twin drive and free tires mounted as basic to simply help overcome hurdles, it was a match for just about any worldwide rival in the same course. The AB 41 variation, introduced in 1941, included several improvements, as the anyone to the main tool, a 20 mm Breda model 1935 cannon.