Formally introduced within opening of FIAT’s Mirafiori plant in-may 1939, the AB 40 finished up being, during those times, an essential element of a cutting-edge automobile. Because of revolutionary solutions such as for example twin drive and free tires mounted as fundamental to simply help overcome hurdles, it absolutely was a match for virtually any global rival in the same program. The AB 41 variation, introduced in 1941, included some improvements, once the you to the important thing device, a 20 mm Breda model 1935 cannon.