Formally provided in opening of FIATs Mirafiori plant in-may 1939, the AB 40 ended up being, during those times, one thing of a cutting-edge automobile. Considering revolutionary solutions such as for instance dual drive and free tires mounted as fundamental to assist over come obstacles, it was a match for every single worldwide rival in identical course. The AB 41 variation, introduced in 1941, included some improvements, yet its primary device (a 20 mm Breda 35 cannon) remained comparable. With the capacity of over 70 Kph on the road and very nearly 40 Kph off road (two times than other cars in to the Regio Esercito), it proved effective in combat no matter what the defects because of use of bad materials towards the armour and the complex 4-wheel steering system. It absolutely was a while later changed by the enhanced AB 43 variation