The Morris Commercial C8 FAT (Field Artillery Tractor) commonly known as a Quad was an artillery tractor of the British and Commonwealth forces during World War II. It was used to tow field artillery pieces, such as the 25 pounder gun-howitzer, and anti-tank guns, such as the 17 pounder.
 
Although its sloped sides suggest otherwise, the Quad was not armoured.
 
It saw service in the British Army throughout the war in all theatres.