Hammond was a British car marque associated with the Whitworth Engineering Co. Ltd, based in Finchley, London. The company's 11/22hp model was developed by former employees of Arrol-Johnston. Its engine shared a 69mm cylinder bore with many other light cars of the era, which typically produced a 1496cc capacity with a 100mm stroke. The Hammond, however, used a longer 150mm stroke, giving it a displacement of 2242cc while its owner…