This Marmon-Herrington Armoured Car Mark IV was on display at Bovington.
The Marmon–Herrington armoured car was a series of armoured vehicles that were produced in South Africa and adopted by the British Army during World War II.
The Mark IV was a completely redesigned vehicle, though still based on the same engine and Marmon–Herrington components. It was a monocoque with rear-mounted engine and a turret-mounted 2-pounder with a coaxial .30 in Browning machine gun as the standard armament.
Further versions were designed but never got beyond the prototype stage. By that time (late 1943), the North African Campaign had ended, the mountainous geography of the Italian campaign did not suit armoured cars, and the British and Commonwealth armies were receiving enough armoured cars from other sources.