The Centaur series of British combat tanks was a product of Leyland Motors and developed alongside the competing Cromwell series of tank and built to the same specifications. The Centaur grew into a very similar design when compared against the Cromwell, though the two would see very different histories develop. The Centaur would prove to be a stop-gap design that would never fulfill its potential, being withdrawn from service by war's end. The system would primarily suffer from an inadequate engine, limiting production and thusly its usage en mass.
With the design of the failed Cruiser Tank Mk VII Cavalier series under its belt, the Leyland Motors company set to bring about a redesigned variant with the designs issues seemingly ironed out. Unfortunately, such was not to be as the Cruiser Centaur system effectively carried over the limiting traits of the previous attempt. Fitting the tank with a Liberty brand engine also did not solidify the design in anyway as the engine was deemed too under-powered and unreliable to the competing Rolls-Royce Meteor types found in the Cromwell.
Even so, the Centaur I appeared from production in June of 1942. These initial systems were held in reserve as trainer tanks while the Centaur III systems came online, these mounting a 75mm main gun and appearing in very limited quantity. The definitive combat Centaur IV followed soon after in equally limited numbers and were fitted with 94mm howitzers. The Centaur IVs would make a contribution to the D-Day landings in June of 1944 and some time afterwards as well.
At its core, the base Centaur III mark sported a 57mm (6-pounder) main gun. Later versions would see this upgraded to a more powerful 95mm howitzer type. Self-defense weaponry came about from one or two BESA-type 7.92mm anti-infantry machine guns. All Centaurs featured crew accommodations for five personnel.
Several variants of the Centaur came aboard after usage of the primary base models were all but spent. These included derivatives based on the similar chassis of the combat versions but were specialized in the form of dozers, observation posts and battlefield engineering vehicles. All combat Centaurs were removed from traditional service and were either re-engined as Cromwells or relegated to secondary roles.