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The BMW 600 is a four-seater microcar produced by the German automaker BMW from mid-1957 until November 1959. Partially based on the BMW Isetta two-seater, it was BMW's first postwar four-seater economy car. It was not a sales success, but it began the design process for its more successful successor, the BMW 700.

BMW 600
Overview
ManufacturerBMW
Also calledBMW Isetta 600[1]
Production1957–1959
34,813 built[2]
DesignerWilly Black [3]
Body and chassis
ClassMicrocar
LayoutRR layout
RelatedBMW Isetta
Powertrain
Engine582 cc flat twin
Transmission4-speed manual all-synchromesh[4]
Dimensions
Wheelbase1,700 mm (66.9 in)[3]
Length2,900 mm (114.2 in) (international)[3]
2,946 mm (116.0 in) (US version)[1]
Width1,400 mm (55 in)
Height1,375 mm (54.1 in)
Curb weight515 kg (1,135 lb) dry weight
Chronology
PredecessorBMW 3/20
SuccessorBMW 700

Concept, design, and engineering


Right 3/4 view, with front door open and side door in view
Right 3/4 view, with front door open and side door in view

BMW needed to expand its model range, but they did not have the resources to develop an all-new car with an all-new engine. Therefore, it used the Isetta as starting point for a new four seat economy car.[5]

BMW 600 interior
BMW 600 interior

As a result, the 600 used the front suspension and front door of the Isetta.[3] The need to carry four people required a longer frame, a different rear suspension, and a larger engine. A new perimeter frame was designed, using box section side members and straight tube crossmembers.[3] The rear suspension was an independent semi trailing arm design; this was the first time BMW had used this system.[6][7] The chassis had a wheelbase of 1,700 millimetres (67 in),[3] a front track of 1,220 millimetres (48 in), and a rear track of 1,160 millimetres (46 in).[6]

The 600 was powered by the 582 cc (35.5 cu in) flat-twin engine from the R67 motorcycle/sidecar combination. This engine, which delivered 19.5 horsepower (14.5 kW) at 4,500 revolutions per minute, was mounted behind the rear wheels. A four-speed manual gearbox was standard,[6] while a Saxomat semi-automatic transmission was available.[8] The 600 had a top speed of approximately 100 km/h.[9]

Access to the rear seats was by a conventional door on the right side of the vehicle.[4][3]


Reception


The Isetta image hurt the sales of this larger, more upscale car.[7]
The Isetta image hurt the sales of this larger, more upscale car.[7]

The sales figures for the 600 did not meet BMW's expectations. During production from August 1957 to 1959, about 35,000 were built. This is attributed to competition with more conventional cars, including the Volkswagen Beetle.[5][6]


Legacy


Rear view of the 600
Rear view of the 600

The 600 played a direct role in the design of its successor, the BMW 700. Wolfgang Denzel, the distributor of BMW cars in Austria, commissioned Giovanni Michelotti to prepare concept sketches based on a lengthened BMW 600 chassis. Denzel presented the concept, a 2-door coupe with a slanted roof, to BMW's management. The concept was generally well received, but objections were raised about the limited passenger space. BMW decided to produce two versions, the coupe, and a 2-door sedan with a taller, longer roof.[10][11]

Another legacy of the 600 was its independent semi-trailing arm rear suspension. This was BMW's first use of this suspension system and, with the exception of the BMW M1,[3] it was used on every BMW production automobile until the 1990s.[3][7] It was eventually supplanted by the "Z-axle" multi-link suspension introduced with the BMW Z1 in 1988.[12] The last BMW cars with semi-trailing arm suspension were the BMW Compact and the BMW Z3.[13]


Space efficiency


The BMW 600 was noted in magazine and journal articles as an example of space efficient design.[14][15] It was noted for carrying four people within a shorter length than that of the Mini.[15]


Notes


  1. Railton 1958, p. 85.
  2. Norbye 1984, p. 251.
  3. Norbye 1984, p. 122.
  4. Gloor 2007.
  5. Noakes 2005, p. 56.
  6. Norbye 1984, p. 123.
  7. Lewin 2004, p. 34.
  8. Sass 2007.
  9. Noakes 2005, p. 57.
  10. Norbye 1984, pp. 124–125.
  11. Lewin 2004, pp. 34–35.
  12. Noakes 2005, pp. 137–139.
  13. Noakes 2005, pp. 151–152.
  14. Railton 1958, pp. 84–87.
  15. Lowrey 1964, p. 733.

References




Wikimedia Commons has media related to BMW 600.

На других языках

[de] BMW 600

Der BMW 600 war ein nach dem Vorbild der BMW Isetta entwickelter viersitziger Kleinwagen (nach heutiger Definition Kleinstwagen) der Bayerischen Motoren Werke. Zum Einstieg hatte er eine Fronttür und hinten rechts eine seitliche Tür. Die Motorkonstruktion ging weitgehend auf die Motorrad-Boxermotoren von BMW zurück, jedoch waren die Wagenmotoren kurzhubiger ausgelegt und mit einem Drosselklappenvergaser ausgestattet. Gebaut wurde das Fahrzeug von Dezember 1957 bis November 1959. Der BMW 700 mit längerem Radstand, seitlichen Türen und selbsttragender Karosserie ersetzte den BMW 600.
- [en] BMW 600

[fr] BMW 600

La BMW 600 est une voiturette 4 places du constructeur BMW produite entre 1957 et 1959. Elle a été un échec commercial, et mit BMW en situation de grande difficulté financière.

[it] BMW 600

La BMW 600 è una vettura di fascia bassa prodotta dal 1957 al 1959 dalla casa automobilistica tedesca BMW.


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