Ferdinand Porsche, who worked for the company at that time. War-time production there included small arms, assault rifles, machine guns, and aircraft engines. After the war, Steyr-Daimler-Puch built diesel engined trucks and buses, small and heavy tractors and resumed passenger car production. First, Steyr assembled the FIAT 1100E, then put their own engine in a Fiat 1400, renaming the car the "Steyr 2000". From 1957 through to the early 1970s it produced the tiny Puch 500 under license from FIAT, again with an engine of Austrian design. Most prominent was its range of off-road cars, from the two-cylinder Haflinger and the 4 x 4 or 6 x 6 Pinzgauer, the Fiat Panda 4x4 (999 cc) to the Mercedes-Puch G. SDP was the initial designer and manufacturer of these utility vehicles. The Haflinger was produced from 1959–1974, the Pinzgauer from 1971–2000, and the Puch G (also known as Mercedes G-Class) from 1979. The company's Puch division produced a line of motorcycles, mopeds, and motor scooters marketed in the United States through Sears Roebuck including the Puch 250 SGS which was delivered in a cardboard crate box to the customer's home. The Austro-Daimler branch built heavy tractors and trucks for the imperial Austrian army (before 1915). The main Steyr civil agricultural tractor production started in 1947. After the war Steyr-Daimler-Puch resumed manufacturing bicycles and mopeds, gradually establishing distributors in several countries to manage their sales. Steyr made bicycles for sale for other retailers, most notably Sears. In the mid 1970s "Steyr-Daimler-Puch America" was incorporated in Connecticut to manage importation and distribution of bicycles and mopeds. Puch Austro-Daimler bicycles remained in production at Graz in Austria until the motorcycle and bicycle fabrication portions of the company there were sold in the mid 1987 to Piaggio & C. S.p.A. of Italy. Gradual dissolution In 1987, Steyr-Daimler-Puch AG began selling portions of its different production lines to form separate companies, which included Steyr Nutzfahrzeuge AG ("Steyr Commercial Vehicles", SNF; still based in Steyr) for truck manufacturing, Steyr Bus GmbH (in Vienna) for bus manufacturing, Steyr-Daimler-Puch Fahrzeugtechnik AG (SFT) and the EUROSTAR joint venture in Graz-Liebenau for assembly of automobiles and, in 1990, Steyr Tractor (Steyr Landmaschinentechnik AG). Other production lines were spun off or sold outright to form independent companies, including Puch's motorcycle division going to Piaggio and Steyr Mannlicher producing weapons. In 1990, the diesel engine division was spun off into Steyr Motorentechnik GmbH,