M8 / M20 Armored Cars Walk Around. Book by Jim Mesko. Squadron Signal BooksThe M8 'Greyhound' armored car was the only armored car used in substantial numbers by US forces during World War II. The M20, an offshoot of the M8 design, also played a number of active roles, in particular serving as a command car for high-ranking officers in forward areas. Both vehicles, manufactured by the Ford Motor Company, went on, after World War II, serving US and various Allied forces around the world. Some countries were still using the vehicles at the turn of the 21st century. The M8 featured an open-top turret in which was mounted an M6 37mm cannon and coaxial Browning .30-caliber machine gun. The M20 replaced the turret with an open-topped parapet with a ring-mounted .50-caliber machine gun. When serving as a command car, the M20 packed additional radios and a folding map board. This lavishly illustrated volume is packed with contemporary and historic images that document not only the vehicles' configurations as produced, but also their appearance and activity in the field - the most unique collection of detailed photos of the Greyhound currently available. Illustrated with over 250 photographs, color profiles and detailed line drawings; 80 pages.