Bussing Nag L4500S Büssing was a German bus and truck manufacturer established by Heinrich Büssing (1843–1929) in Braunschweig in 1903. Büssing’s first truck was a 2-ton payload machine powered by a 2-cylinder gasoline engine and featuring worm drive. That successful design was later built under license by other companies in Germany, Austria, Hungary and by Straker-Squire in England. Before World War I Büssing started to build heavy-duty trucks for the time. These trucks featured 4- and 6-cylinder engines (5 tonnes and 11 tonnes, respectively). In 1923, Büssing introduced the first rigid three-axle chassis which was used in upcoming models and allowed Büssing to lead the market share in Germany in commercial vehicles.