Moto-Guzzi was founded in Italy 1917 by Carlo Guzzi and Giogio Parodi who had met in the Italian Air Force a number of years earlier. Moto Guzzi started to produce 3-wheelers in 1928 and in 1963 under contract to the Italian military, Moto Guzzi manufactured a 3 X 3 vehicle called the “Mullo Mechanico” (Mechanical Mule) that was powered by a 700cc 90-degree transverse V-twin engine. Steering was to the front wheel whilst the rear wheels featured “track-like” wheels.
During the 1960s Moto Guzzi also produced a 50cc Pickup called the Dingotre. Although I can not yet find out when, a two seater open back van type 3-wheeler called the “Ercules” that was powered by a 300 - 500cc engine was also made by Moto Guzzi. Moto Guzzi continued to make 3-wheelers up until the early 1980’s.