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The DKW 3=6 was a compact front-wheel drive saloon manufactured by ''Auto Union GmbH''. The car was launched at the Frankfurt Motor Show in March 1953 and sold until 1959. It was also named as the DKW Sonderklasse and, following the factory project number, as the DKW F91. From 1958, by which year the car’s successor was already being sold and the earlier version had therefore become, in essence, a ‘run-out’ model, it was badged more simply as the DKW 900. Apart from complications involving its naming, the 3=6’s notable features included its two-stroke engine and front-wheel drive layout along with the sure-footed handing that resulted. In a market segment increasingly dominated by the Volkswagen Beetle, the Auto Union contender also boasted class leading interior space, especially after the arrival of the four-door version, which featured a modestly extended wheelbase. The DKW 3=6 in due course replaced the DKW F89 / Meisterklasse, although the Meisterklasse remained in production until April 1954. In its turn, the 3=6 was succeeded by the more powerful Auto Union 1000, offered already from 1957. ==Many names == DKW was one of four companies that had come together in 1932 to form the Auto Union based in Zwickau. The company was effectively refounded in West Germany in 1949, following the loss to the Soviets of its Zwickau assets.Three of the four businesses that had constituted Auto Union before the war seemed unlikely ever to reappear on either side of the Iron Curtain, but starting in 1949 the DKW name was used for the F89 assembled by Auto Union in the west: this was the model replaced by the 3=6. * The name ‘Sonderklasse’ differentiated the car from the previous model which had been known as the ‘Meisterklasse’. Both names had also been used for commercially successful DKWs in the 1930s. Sonderklasse is a German verbal concatenation that does not translate comfortably into English: it is based on the word ‘Sonder’ of which one translation is ‘special’, linked to the word ‘Klasse’ which translates as ‘class’, or category’. * The name ‘3=6’ started out as an advertising slogan, but by the time of the 1955 face lift, the name was to the fore, and the car was advertised as the ‘Large 3=6’ (Grosse 3=6) differentiating it from the earlier version which already carried the script ‘3=6’ ahead of the door on its left side. The point of the advertising slogan was to highlight an equivalence between the car’s two stroke three cylinder engine and a four stroke six cylinder engine. The underlying logic was that with the two-stroke cycle there is engine power produced by an explosion within each cylinder for every rotation of the crankshaft: with the four-stroke cycle there is power produced by an explosion within each cylinder only for each alternate rotation of the crankshaft. Thus it was asserted that the two-stroke engine was working twice as hard per rotation of the engine. In terms of torque the two-stroke system does indeed appear to have conferred substantial benefits when compared to a four-stroke engine of similar size, but in terms of bhp much of the theoretical energy gain in terms of power output seems to have been dissipated as additional heat which in turn required a larger energy consuming cooling fan, all of which made the arrangement rather noisy when placed just ahead of the driver and front-seat passenger. * The name F91 was the factory project number of the car. ‘F’ stood for ‘Frontantrieb’ (Frontwheel drive). The F91 was an evolution from the DKW F9 which had been a prototype presented in 1938, planned for production at Auto Union’s Zwickau plant from 1940. By 1950 the F9 itself had been made production ready and was being produced as the IFA F9 in Zwickau, so that name was in practice not available to ‘old’ Auto Union’s western successor. The DKW F91 was replaced by the F93 followed by the F94, their names also taken from factory project numbers. Because the other names have proved increasingly unfathomable, the names F91, F93 and F94 are the ones commonly used retrospectively. It was perhaps in recognition that any perceived marketing advantages available from the unconventional namings had been exhausted, that from 1958 the car was sold simply as the DKW 900, the name being now conventionally based on the car’s approximate engine displacement. The successor model, already in production in 1957, also benefited from this less challenging nomenclature. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「DKW 3=6」の詳細全文を読む スポンサード リンク
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