The AB 40 armoured automobile ended up being devised for the Italian RoyalArmy in belated 1930s, to replace the old Lancia models. The automobile was revolutionary at that time, being a four-wheel drive with separate suspensions and two driving positions. The armoured vehicle ended up being fitted with two 8mm machine firearms within the turret and another within the rear of hull, but had been just integrated tiny figures for assessment purposes, as development of the greater sophisticated AB 41 was already underway.