The Büssing company received its first orders of military vehicles in 1910, producing artillery tractors and supply trailers. In November 1914, Bussing was requested to develop an armoured car with all-wheel drive. In 1916, the A5P began production. Its powerplant was Bussing's successful 6-cylinder truck engines. It had a large steel armoured body and was crewed by 10 men. 6 of the crew operated three 7.92 mm machine guns, usually the MG 08 or MG 15 nA. Some vehicles even received two 20 mm cannon. The A5P served on the Eastern Front until 1917. It was produced in limited numbers.