Moto Guzzi wind tunnel + Le Mans II

This is the Guzzi wind tunnel complete with Le Mans II and various V-twins at the factory test track back in the 70s. Groovy baby. Story goes that the Guzzi wind tunnel (like many) was only used at night because it used so much power the grid couldn't supply enough electricty if there were other significant demands. Bzzz, click. Spare Luigi a few lira for the meter...