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BMW 600

Also known as Isetta 600, “Große Isetta”

An Isetta grown long enough for four: you still get into the front through the nose, with the steering wheel swinging out on the door, but the back seat has a door of its own, on the right side only. Behind it sits the flat twin from a BMW motorcycle.

Blue small car with grey roof parked on gravel in a park, chrome bumper and a rally plaque in the windscreen.
A blue 1959 BMW 600 at the Classic-Gala Schwetzingen in 2022.Photo: Alexander Migl, CC BY-SA 4.0, via Wikimedia Commons

At a glance

The spec plate

BMW 600

BMW 600 · Munich

Built
1957–⁠1959From late 1957 to November 1959
Country
West GermanyMunich
Maker
Bayerische Motoren Werke AGMunich
Engine
582 cc BMW flat twin, air-cooledFrom BMW’s motorcycles; 585 cc by its bore and stroke
Power
19.5 PS14.4 kW at 4,500 rpm; American sources give 26 hp
Length
2,900 mm1,400 mm wide, 1,375 mm high
Weight
550 kg560 kg by the factory; 515 kg by the Weiner museum
Seats
4On two benches; a side door for the rear
Wheels
4Flat twin behind the rear axle, driving the rear wheels through a differential
Price new
DM 3,985Close to the price of a Volkswagen
Production
34,813BMW’s own figure; 9,119 of them exported
Top speed
103km/h103 km/h64 mph

How big is it?

True proportion

2.90 m

It is 70 mm shorter than a Fiat 500, about 1.7 adults laid end to end.

  • 1.40 m wide
  • 550 kg: about seven adults
  • About 100 litres of luggage behind the rear seatsource 1
  • Wheelbase 1,700 mmsource 1source 2
Drawn at true proportion. The track is 3.6 metres long; the adult stands at the same scale. The Peel P50 is the smallest production car, on every page for comparison.

The story

History

BMW needed a bigger car and lacked the money to design one from scratch.source 3 Critics said the Isetta was too small, so BMW went up a class; but by May 1956 its management had already committed to an all-new car for 1959, the 700, and the 600 was meant as an interim model, easy to build on the Isetta’s existing equipment.source 4 Money was short. BMW lost about DM 6.5 million in 1956 and expected another loss for 1957, and at the start of 1958 auto motor und sport called the 600 the beginning of an expansion whose investments would weigh on the results.source 5

A prototype of 1956 had the Isetta’s folding roof and free-standing headlamps and no side door, and the old BMW name Dixi was considered for it. The Bruce Weiner Microcar Museum says it looked just like a stretched Isetta, with the standard two-tone front door and Isetta bumpers, and ran the engine of the R67 motorcycle.source 1source 4 The press saw the 600 on 27 August 1957 at Feldafing, on Lake Starnberg, the public at the Frankfurt show that September, and production began in December.source 1source 6 Who designed it is not settled. English Wikipedia, after Norbye, names Willy Black; the Weiner museum and RM bring in Giovanni Michelotti, whose part in the later 700 is better documented.source 3source 4source 6

Front door, side door

The body was all steel, on a frame of box-section tubes. As on the Isetta, the front door opened to the left and took the steering wheel and dashboard with it; the spare wheel lived inside it. The rear seat had a single door, on the right.source 1source 3source 7 Four people sat on two benches, about 100 litres of luggage went behind the rear one, and a folding sunroof was an option.source 1 The air-cooled flat twin of 582 cc and 19.5 PS sat behind the rear axle and drove the rear wheels through a four-speed gearbox, synchronised on every gear, a differential and two half-shafts.source 1source 3source 2 The rear wheels were on semi-trailing arms, which English Wikipedia, after Norbye, calls the first such BMW axle, a layout the firm then used for decades.source 3 Kraftfahrzeugtechnik noted the all-synchromesh gearbox and the asymmetric dipped beam as firsts on a German small car, but within months some of that good equipment, the dipped beam among it, had been cut.source 1source 8 The Saxomat automatic clutch, advertised late in 1958, found few buyers.source 9source 1

Black-and-white photograph of a pale bubble car parked by a house, side door hinges and front panel visible.
Plate I · 1967 A 1957 BMW 600 in Leiden in 1967, photographed for the city archive: the front door in the nose and the single side door behind it.Photo: Postel, J.W.C. (Primaire vervaardiger), CC BY 4.0, via Wikimedia Commons

The moving space first

In the summer of 1958 auto motor und sport set the 600 against the NSU Prinz, the Fiat 600 and the Lloyd Alexander. It found an original design, quiet and lively, with an engine it called the most beautiful twin that motorcycle engineering had produced, good climbing, good brakes and an excellent view from the seat far forward, above all at night. On a wheelbase of 1,700 mm (67 in) it could not match the longer cars in a crosswind or in roll, and it came only third of the four for road-holding.source 8 Paul Simsa found more room in the back than in the usual two-door small car.source 1

In diesem jüngsten BMW-Fahrzeug ist der Mobilgedanke noch springlebendig: Erst der fahrbare Raum, dann die umgebende Hülle.

auto motor und sport 15/1958, comparison test of four 600 cc cars. In English: “In this newest BMW the Mobil idea is still springing with life: first the moving space, then the envelope around it.”source 8

BMW’s advertising called it a full-value automobile, entered through a wide front door and a comfortable side door rather than narrow slits, and promised that you need not get out even on the Turracher Höhe in Carinthia, which it called Europe’s steepest pass.source 9 In 1958 the 600 won its class in the Austrian Alpine Rally and took the first four places for economy at Hockenheim (see racing and rallying).source 10source 11

Bridge to the 700

For a while it carried BMW: by 1958 the 600 brought in 39 per cent of the company’s turnover, the Isetta 27.source 12source 13 But at DM 3,985 it cost almost as much as a Volkswagen, 200 marks more than a Beetle by the Weiner museum’s reckoning, and the odd doors and the Isetta image kept buyers away; by 1959, the museum says, people wanted a normal-looking car.source 1source 3source 4 Of 34,813 built, 9,119 went abroad, 4,020 of them in an overseas version with bumper bars and sealed-beam headlamps, sold in the United States as the Isetta 600.source 1source 3 The Austrian importer Wolfgang Denzel had Michelotti sketch a coupé on a lengthened 600 chassis, and that led to the 700.source 3 The 600 was dropped for it in November 1959, and the 700 went on to sell about 182,000.source 1source 4

Red car with its whole front panel opened sideways, revealing the white steering wheel, column and beige interior.
The front door open on a red and white 600 in Belgium in 2010: the steering wheel and column swing out with it.Photo: Alf van Beem, CC0, via Wikimedia Commons
Red car with cream roof driving along a field road towards the camera, fabric roof rolled back, fields behind.
Four up with the sunroof open: a red and cream 600 near Bad Wörishofen in 2015.Photo: Lothar Spurzem, CC BY-SA 2.0 de, via Wikimedia Commons

De Carlo 600

1959–⁠1960 · a record on this page

Metalmecánica S.A.I.C., founded in Buenos Aires in 1943, built tens of thousands of Paperino scooters from 1957.source 14 It joined Argentina’s car-making scheme of 1959 and began assembling BMW-licensed cars under the name De Carlo, its owner’s, at José C. Paz in Buenos Aires province: first the De Carlo 200 minicar, then the 600 (see built under licence).source 15source 14source 16 It was BMW’s car, front door and side door and flat twin at the back, assembled with a high share of imported parts.source 15source 17 Auto Historia liked its versatility: take out the passenger seat and the rear seat and it became a light van, with the spare wheel in the front door.source 17

The Argentine sources give 22 or 23 hp against BMW’s 19.5 PS, perhaps measured another way, and 100 km/h.source 15source 17 Coche Argentino, working from period publications, counts 1,413 cars, built in 1959 and 1960; English Wikipedia stretches the dates to 1962.source 15source 17source 14source 18 In 1960 the De Carlo 700, the BMW 700, replaced it, and in 1964 Metalmecánica restyled that car as the SL, which it called the first Argentine redesign. Car making ended in 1965 or 1966.source 15source 14 No survivor of the 600 has been traced, but a neighbourhood of José C. Paz is still called De Carlo.source 16

Pictures

More photographs, old and new

Variants

One car, three markets

The BMW 600 and its relatives
VariantYearsWhat differsHow many
Prototypes1956The Isetta’s folding roof and free-standing lamps, no side door; the name Dixi consideredNot known
BMW 600Late 1957 – Nov 1959The production car34,813, all versions
Overseas version, “Isetta 600” in the USA1958–⁠59Bumper bars and sealed-beam headlamps; 2,946 mm long4,020
Saxomat1958–⁠59Automatic clutch, an optionFew
De Carlo 6001959–⁠60Assembled under licence in Argentina1,413

Specification

The BMW 600 of 1958

Engine and drive

Engine and drive
EngineBMW flat twin, air-cooled, overhead valves, behind the rear axle, 582 cc (74 × 68 mm)source 2source 1585 cc by German Wikipedia, which the bore and stroke give
Power19.5 PS (14.4 kW) at 4,500 rpmsource 1source 3source 226 hp by the Weiner museum and RM, probably a gross figure
Torque38 Nm at 2,800 rpmsource 1
GearboxFour speeds, all with synchromesh, central leversource 1source 3Saxomat automatic clutch optional
DriveTo the rear wheels, through a differential and two half-shaftssource 1source 3
StarterBosch 12 V Dynastartsource 1source 4

Body and chassis

Body and chassis
BodyAll steel, on a box-section tubular framesource 1
DoorsOne at the front, carrying the steering wheel and dashboard; one at the right rearsource 1source 3source 7
Front suspensionThe Isetta’s leading arms, turning with the steeringsource 1source 8
Rear suspensionSemi-trailing arms in rubber; coil springs all roundsource 1source 3
BrakesHydraulic drums, 180 mmsource 1
Tyres5.20-10source 1source 24.80 × 10 by the Weiner museum

Dimensions

Dimensions
Length2,900 mm (114.2 in)source 1source 22,946 mm for the overseas version
Width1,400 mm (55.1 in)source 1source 2
Height1,375 mm (54.1 in)source 1source 2
Wheelbase1,700 mmsource 1source 2
Weight550 kg (1,213 lb)source 1source 2560 kg by the factory; 515 kg by the Weiner museum and English Wikipedia

Performance and running

Performance and running
Top speed103 km/h (64 mph), measuredsource 1100 km/h claimed
Price newDM 3,985source 1200 marks more than a Beetle, by the Weiner museum

How many were built?

Every figure, with its source

34,813 built34,813, BMW’s own figure, which Norbye repeats. Of them 25,694 were sold in Germany and 9,119 went abroad.

  1. about 35,000BMW 600sOne source

    Weiner museumsource 4

  2. 34,813BMW 600s, 1957–⁠59Two sources agree

    BMW Classic, via German Wikipedia; Norbye, via English Wikipediasource 1source 3

  3. 34,311the sum of the year-by-year table: 327, 27,185 and 6,799One source

    Oswald and Kittler, via German Wikipediasource 1

  4. 9,119exportedOne source

    German Wikipediasource 1

  5. 4,020overseas version, with bumper bars and sealed-beam lampsOne source

    German Wikipediasource 1

  • Two sources agreetwo good sources give the figure
  • One sourcea good source, alone
  • Unconfirmeda lead only, not yet checked

Famous for

Three points

  1. Two kinds of door

    A front door with the steering wheel on it, and one side door for the back seat.

  2. A motorcycle twin

    The flat twin from BMW’s motorcycles, behind the rear axle.

  3. Bridge to the 700

    An interim car built on Isetta tooling while BMW readied its successor.

Racing and records

Economy and the Alps, 1958

97km/h · 12 h

On 26 May 1958, at Hockenheim’s 12-hour endurance and economy test for cars of up to 600 cc, BMW 600s took the first four places for consumption, among them a works team of three with Hans Stuck among its drivers; a Lloyd Alexander won the race itself.source 10

5.23 l/100 km
the class winners, Dr Bieling and Dr Honegger; BMW’s advertising claimed 5.22 at an average of 97.3 km/h.source 10source 9
1st, 2nd, 3rd
in the class to 750 cc in the Austrian Alpine Rally, 6–8 June 1958, with the gold team prize.source 11
Class win
for A. von Falkenhausen in the Tiroler Bergfahrt, 28 September 1958.source 19

Survivors and collecting

Today

No count of survivors has been found. BMW’s museum in Munich shows one, and the BMW Group Archive keeps the press kit, the owner’s manual of May 1958 and the parts list.source 1 The Weiner museum had a blue 1958 car and a yellow 1959 one; when the collection was sold in February 2013, the 1959 car, chassis 135250, made US$46,000.source 4source 6 In 1960 Siegfried Martin Winter published Mit 600 Kubik durch beide Amerika, “With 600 cc through both Americas”.source 1

Sources

Numbered as in the text

Sources are given as plain text; the links are on the Credits page.

  1. German Wikipedia, BMW 600, read in full. Used as a lead; it cites Oswald, Deutsche Autos 1945–⁠1975 (1979), Kittler, BMW: Alle Personenwagen seit 1928 (2008), BMW Classic, Kraftfahrzeugtechnik 7/1958 and the BMW Group Archive.
  2. “Daten der deutschen Personenwagen”, auto motor und sport 21/1958, the BMW 600’s row.
  3. English Wikipedia, BMW 600, read in full; used as a lead. It cites Norbye (1984), Popular Mechanics (July 1958) and New Scientist (18 June 1964).
  4. Bruce Weiner Microcar Museum, “1958 BMW 600” and “1959 BMW 600”, tour pages (2002), archived, read in full.
  5. Business news on BMW, auto motor und sport 1/1958, read in extract.
  6. RM Auctions, the Bruce Weiner Microcar Museum sale, Madison, Georgia, February 2013, lot 626, “1959 BMW 600”.
  7. Article on car doors, auto motor und sport 7/1958, read in extract.
  8. Comparison test of four 600 cc cars, auto motor und sport 15/1958.
  9. BMW 600 advertisement, auto motor und sport 21/1958.
  10. Günther Molter, report and results of the 12 Hours of Hockenheim, auto motor und sport 12/1958 (7 June 1958).
  11. BMW advertisement listing the 1958 successes, auto motor und sport 15/1958.
  12. BMW Group PressClub, “50 Years of BMW Isetta”, press release, 25 February 2005.
  13. German Wikipedia, BMW Isetta, read in full.
  14. German Wikipedia, Metalmecánica, read in full; it cites Linz and Schrader (2008), Georgano and Coche Argentino.
  15. Francisco Álvarez, “De Carlo – Metalmecánica S.A.I.C.”, Coche Argentino, updated 18 May 2009, archived, read in full; from period publications, brochures and manuals.
  16. Small Cars Club, “De Carlo 700”, 20 May 2020, an enthusiasts’ site, read in full.
  17. Auto Historia, “De Carlo 600 con licencia BMW”, archived 2016, read in full.
  18. English Wikipedia, Isetta, section on De Carlo in Argentina, read; it cites Coche Argentino.
  19. Sport results, with the Tiroler Bergfahrt of 28 September 1958, auto motor und sport 22/1958, read in extract.