Honda of the UK Manufacturing (informally HUM) is a subsidiary of the multinational automotive company Honda based in the United Kingdom. HUM operates a number of manufacturing plants at a site in Swindon, which include casting, engine assembly, pressing, welding, painting and car assembly activities. HUM employs around 3,400 people at the plants, which occupy a site covering around 370 acres. Honda has made a total investment of £1.38 billion in the Swindon plants. In 2008 the Swindon site produced 230,423 cars.