Saab two-stroke
The Saab two-stroke was a two-stroke cycle, two cylinder, and later Straight-three engine that Saab based on a DKW design. The first version was displacement twin that was transversally mounted in the 1950–1956 Saab 92. It had with , and a top speed of . The 1954 model engine output was raised to . It had some features only found in modern cars such as one ignition coil per cylinder. The second type of Saab two stroke engine was a longitudinally placed inline-three cylinder of and initially . It was used in the Saabs 93, 94 (Sonett  I, with an engine tuned to ), Saab Sonett II, 95, 96, Saab GT750, the Saab Formula Junior and the Saab Quantum. The engine has a belt driven DC dynamo and a coolant water pump. The 1958-59 Sports version of the 93B had in base version and in the super version. This model had triple carburetors and a motor oil injection system, rather than oil pre-mixed with the petrol. From 1959 displacement was raised to with . For model year 1966, the 'standard' 3-cylinder two-stroke engine had triple carburetors. From model year 1967 Saab began replacing it with  the Ford Taunus V4 engine. A special version was built for the United States' 1968 model year, sleeved down to to avoid new emission regulations which exempted engines under . Saab also made some experimental V6 engines, by mounting two three cylinder two-stroke engines together, at an angle. One had carburetors on the outside, while another was more conventional, with a carburetor in between the two blocks. Initially all engines were built at the Saab Trollhättan plant, but engines and gearbox production in 1953 was moved to an old washing machine factory in Gothenburg. When Saab discontinued production of the  two stroke engine and replaced it with a four stroke engine built by Ford in Germany, the plant in Gothenburg never again produced engines, but the production capacity was needed for the increased demand of gearboxes due to the introduction of Saab 99 a few years later.