Antitank gun and crew ride in the protection of armored walls in a fast “blitz wagon” designed by Maj. Howard P. Johnson and submitted to the U. S. Army. The 37-millimeter gun can be fired from the car when its back is let down, or can be wheeled down the back and rolled into action. These guns are normally hauled by trucks, but the new car gives more shelter to the crew and can travel faster with more stability. Besides the antitank weapon, the “blitz wagon” carries four machine guns and has portholes for rifles.