Saab-Scania AB was the name chosen when truck and bus manufacturer Scania AB of Södertälje merged with car and aeroplane manufacturer Saab AB of Trollhättan on 1 September 1969, under the Wallenberg family group of companies. The merger meant that Saab no longer had to import the British Triumph Slant-4 engine, and could instead use the engine production facilities of Scania. In 1972 they started manufacturing the 2.0 L B version. In 1977, Saab took advantage of Scania's experience with turbochargers and added one to the engine, thus creating one of the earliest turbocharged automobile engines to be produced in large numbers.