During the Second World War, Daimler turned again to military production. A four-wheel-drive scout car, known to the Army as the Dingo had a 2.5-litre engine and the larger Daimler Armoured Car powered by a 4.1-litre engine and armed with a 2-pounder gun were produced, both with six-cylinder power units, fluid flywheels and epicyclic gearboxes.[105] These military vehicles incorporated various innovative features including disc brakes on all four wheels.[105] The Dingo was designed by parent company BSA and took the name "Dingo" from an unsuccessful competitor submitted by Alvis.[106]