The Lancia 3Ro was an Italian 4x2 heavy truck introduced in 1938 and remaining in production until 1947. The 3Ro was used extensively by the Royal Italian Army in all theatres of WWII. The 3Ro was also fitted with the 90/53 Anti Aircraft gun on the rear deck for air defence as well as the Obice da 100/17 Howitzer. The Italians mounted the Modello 14 on Lancia 3Ro trucks using them as mobile anti tank guns.