Produced by the Rootes Group, the Humber Light Reconnaissance Car was an armoured car based on the Humber Super Snipe chassis (as was the Humber Heavy Utility car. It was equipped with a No. 19 radio set. From 1940 to 1943 over 3600 units were built.
The original version with open-topped hull and 4×2 drive. Armoured to a maximum of 10 mm on the front and 7–9 mm on the sides. Armament was a Boys anti-tank rifle and a Bren light machine gun. Only a limited number were built before the Mk I was replaced by the Mk II.
Mk II
The Mk II had an enclosed roof with a turret for the machine gun and retained the 4×2 drive of the Mk I. The Boys faced forward in the front of the hull. Otherwise armoured as the Mark I, the roof was 7 mm and the turret 6 mm.
Mk III
The Mk III was externally similar to the Mk II but had 4×4 drive. Production began in late 1941.
Mk IIIA
The only difference from the Mk III was additional vision ports at the front angles of the hull. Armour was 12 mm to the front, 8 mm to the sides, 7 on the roof and rear, and 6 mm on the turret.
Ironside Special Saloon
Built for VIP use, the body by Thrupp & Maberly included a relatively luxurious interior which was split by a Perspex screen to separate driver and passengers. A passenger side door was provided to make entrance and exit easier, the two-part screen running in tracks fitted to the front seats: sliding both portions to the driver's side allowed the front passenger seat back to be folded for an easier exit. Two Ironside 'specials' of this kind were used by cabinet ministers and members of the royal family, while six minus the privacy screen were used as armoured staff cars. In all 3,600 Humber Light Reconnaissance Cars were built and the MkIII and MkIIIA were the cars most widely used by the Reconnaissance Corps in action, and many were also employed overseas by the RAF Regiment for airfield defence.
Surviving vehicles
A number of vehicles are preserved in museums:
Dutch Cavalry Museum
Royal Museum of the Armed Forces and of Military History, Brussels, Belgium
National War and Resistance Museum, Overloon has a restored Mk III.
Military College of EME, Trimulgherry has an LRC as a gate guardian
43rd Reconnaissance Regiment Living History Group operate a replica vehicle based on an LRC MK IIIa chassis.
A reproduction also exists in private ownership in the Czech Republic A replica built on a postal jeep chassis and with wooden armor exists in Florida, where it is primarily used for reenacting.