After the war, Guy returned to civilian production, with bus production remaining a mainstay and retaining a strong emphasis on export sales to their major markets, including South Africa, Pakistan and the Netherlands. In 1947, Guy received orders for 70 BTX from Belfast, which were fitted with electical equipment by GEC, and 50 BT models for Wolverhampton, which carried BTH electrical equipment. Guy had by then built 496 trolleybus chassis, but in 1948, they acquired Sunbeam Commercial Vehicles Limited and from then on, all trolleybuses produced (except some for UK operators carrying Karrier badges) carried the Sunbeam name. Trolleybuses continued to sell well, with the Sunbeam becoming the most popular model in South Africa.