The AB 40 armoured vehicle ended up being developed the Italian Royal Army to the belated 1930s, to change the old Lancia models. The car finished up being revolutionary at that time, being a four-wheel drive with split suspensions and two driving functions. The armoured automobile ended up being fitted with two 8mm device weapons into the turret and another in the right back towards hull, but finished up being simply integrated tiny numbers for assessment purposes, as development of the greater amount of amount of high level AB 41 was already underway. A number of the models were turned into tracked patrol automobiles while the tires may be changed with train tires and general stopping systems. Several automobiles were current Yugoslavia by the Italian forces and, afterwards, by the Germans.