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The Mercedes-Benz C111 was a series of experimental automobiles produced by Mercedes-Benz in the 1960s and 1970s. The company was experimenting with new engine technologies, including Wankel engines, diesel engines, and turbochargers, and used the basic C111 platform as a testbed. Other experimental features included multi-link rear suspension, gull-wing doors and a luxurious interior with leather trim and air conditioning.

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Mercedes-Benz C111/II
Mercedes-Benz C111/II at the Mercedes-Benz Museum
Overview
Manufacturer	Mercedes-Benz
Production	1970 (16 cars produced)
Assembly	Untertürkheim
Designer	Bruno Sacco
Body and chassis
Class	Sports car
Body style	2-door berlinetta
Layout	Longitudinal, Rear mid-engine, rear-wheel drive
Doors	Gullwing doors
Powertrain
Engine	2.4 L Four-rotor Wankel engine 392 N⋅m (289 lbf⋅ft) torque at 4000 - 5500 rpm
Power output	257 kW (345 hp) at 7000 rpm
Transmission	5-speed manual
Dimensions
Wheelbase	2,620 mm (103 in)
Length	4,440 mm (175 in)
Width	1,800 mm (71 in)
Height	1,120 mm (44 in)
Chronology
Predecessor	Mercedes-Benz SL-X
Successor	Mercedes-Benz CW311 Mercedes-Benz C112

History

The first version of the C111 was completed in 1969. The car used a fiberglass body shell and with a mid-mounted three-rotor direct fuel injected Wankel engine (code named M950F). The next C111 appeared in 1970. It used a four-rotor engine producing 257 kW (350 hp). The car reportedly could reach a speed of 300 km/h (186 mph).[1]

The company decided not to adopt the Wankel engine and turned to diesel experiments for the second and third C111s. The C111-IID produced 140 kW (188 hp) and was based on the 240D W115 model OM616 engine. The C111-III was powered by a 170 kW (228 hp) at 4,500 rpm straight-five OM617 turbocharged diesel that broke nine diesel and gasoline speed records. With more aerodynamic bodywork that gave it an air drag coefficient of 0.191,^{[citation needed]} the C111 eventually reached 322 km/h (200 mph) at the Nardò Ring in 1978, and averaged 16.0 liters/100 km at 316 km/h (14.7 mpg at 195.4 mph) over a 12-hour cruise. A later 373 kW (500 hp; 507 CV)^{[clarification needed]} 4.8 L twin KKK-turbocharged V8 version set another record, with an average lap-speed of 403.78 km/h (250.958 mph). This was achieved by Hans Liebold in 1 minute, 56.67 seconds on May 5, 1979.[2]

Total production was 16 cars: 13 first and second generation Wankel engined cars, two diesel engined third generation cars used in the Nardò record attempt, and a single V8 engined fourth generation car.[3]

Mercedes-Benz introduced the C112 at the Frankfurt Motor Show in 1991 as a proposed production sports car. The car used a mid-mounted 6.0 L V12 engine. After accepting 700 deposits, the company decided not to proceed with production.

References

Notes

Bibliography

External links

• Mercedes-Benz C 111
• eMercedesBenz Feature: A Look Back At The Mercedes-Benz C 111 Research Vehicle July 31, 2008
• Some information (in french) and pictures of all C111 versions

На других языках

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[de] Mercedes-Benz C 111

Die C 111-Serie bestand aus Prototypen und Experimentalfahrzeugen in den 1960er und 1970er Jahren. Mercedes-Benz experimentierte mit neuartigen Motoren und Kunststoffkarosserien.

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- [en] Mercedes-Benz C111

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[es] Mercedes-Benz C111

La C111 fue una serie experimental de automóviles producidos por Mercedes-Benz en los años 1960 y 1970. La compañía estuvo experimentando con nuevas tecnologías de motores, incluidos los motores Wankel, los motores diésel, y turbocompresores, y utilizó la plataforma básica del C111 como un banco de pruebas. Otras características experimentales incluidas eran las puertas de ala de gaviota y un lujoso interior con tapicería de cuero y aire acondicionado.

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[fr] Mercedes-Benz C111

La Mercedes C 111 est une automobile expérimentale dessinée par l’italien Bruno Sacco, présentée en plusieurs modèles de 1969 à 1978. En 1991 la C 112 à portes papillon articulées sur le toit préfigure le modèle CLK GTR

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[it] Mercedes-Benz C111

Con la sigla C111 ci si riferisce una serie di autovetture prodotte dalla Mercedes-Benz tra gli anni sessanta e gli anni settanta per testare motori di nuova concezione come i Wankel, i Diesel e i turbocompressori. Su quest'auto furono sperimentate anche le porte ad ala di gabbiano, gli interni lussuosi con rifinitura in pelle e l'aria condizionata.

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[ru] Mercedes-Benz C111

C111 — серия экспериментальных прототипов, выпущенных немецкой компанией Mercedes-Benz в 1960-е и 1970-е годы. Компания экспериментировала как с новыми технологиями двигателестроения, такими как двигатель Ванкеля, дизельными двигателями и турбонаддувом, и использовала C111 как основу для тестов; так и с материалами изготовления кузова. Другими концептуальными деталями были двери типа «Крыло чайки»[1], люкс интерьер, отделанный замшей и кондиционер.

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