#c111

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.

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).

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, 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) 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.

Total production was 16 cars: 13 first and second generation Wankel engined cars, 2 diesel engined third generation cars used in the Nardo record attempt, and a single V8 engined fourth generation car.

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.

Mercedes-Benz C111-II

Mercedes-Benz C111-II

The beginning of the history of the Mercedes-Benz brand coincides with the starting point of the entire history of the automotive industry: in 1886, German engineers Karl Benz and Gottlieb Daimler independently invented a car with an internal combustion engine. At the end of the 19th century, they became the founders of the companies Benz & Cie and Daimler Motoren Gesellschaft, which were among the first in Germany to master the mass production of gasoline vehicles. In 1926, the firms merged into the Daimler-Benz AG concern with headquarters in Stuttgart, and since then all its cars have been produced under the Mercedes-Benz brand and are decorated with a three-pointed star on the hood or radiator.

Design Mercedes-Benz C111-II

Mercedes-Benz C111-II

C111 is an engineering project of Daimler-Benz, within the framework of which 5 experimental prototypes were built. These vehicles were designed to test complex technologies in the fields of engine building, bodywork and design. All five concepts were based on a steel chassis with multi-link torsion bar suspension and ventilated disc brakes on all wheels.

Design Mercedes-Benz C111-II

Mercedes-Benz C111-II

The bodies were made of fiberglass and were fashionable for the 70s. wedge-shaped with pop-up headlights, but distinguished by sophisticated aerodynamics and gullwing doors. The 2-seater C111 cabin with suede trim and air conditioning was considered luxurious for such a sports car. When the Mercedes-Benz C111-I debuted at the 1969 Frankfurt Motor Show, and a year later the C111-II was shown in Geneva, brand fans saw in them a modern rendition of the legendary 300SL Gullwing coupe. However, the company did not plan to launch them into production, limiting itself to applying some innovations on production models.

Design Mercedes-Benz C111-II

Mercedes-Benz C111-II

The first two prototypes were powered by unconventional Wankel rotary piston engines. The Mercedes-Benz C111-I was powered by a 1.8-liter three-section rotary power unit with direct fuel injection, located in front of the rear axle. It developed 280 hp. and provided a maximum speed of 260 km / h.

Design Mercedes-Benz C111-II

Mercedes-Benz C111-II

In 1970, a Mercedes-Benz C111-II was built with a four-section 350 hp engine, which already accelerated to 300 km / h. Both concepts were equipped with a 5-speed ZF manual transmission. In the future, the company abandoned the Wankel engines, as they consumed a lot of gasoline and gave dirty exhaust.

Design Mercedes-Benz C111-II

Mercedes-Benz C111-II

In 1976, Daimler-Benz engineers returned to the C111 project and fitted the C111-II with a 3005cc inline 5-cylinder diesel engine from the 240D 3.0. Turbocharged, it produced 190 hp but consumed much less fuel. The car passed the test on the Nardo track, where it set 13 speed records for diesel cars. Its successor, the C111-III, received a new body with a drag coefficient of 0.191 and a 5-cylinder turbo diesel engine with 231 hp.

Design Mercedes-Benz C111-II

Mercedes-Benz C111-II

This car accelerated to 322 km / h and showed an average speed of 316 km / h on the Nardo circuit in 12 hours. The next average speed record - 404 km / h - was set in 1979 by Hans Leibold in a Mercedes-Benz C111-IV equipped with a 4.8-liter V8 twin-turbo KKK engine with 500 hp. The body of the C111-IV had fully enclosed wheel arches, an elongated tail with two high anti-roll bars and lower wings at the front and rear.

Interior Mercedes-Benz C111-II

Mercedes-Benz C111-II

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Mercedes-Benz C111-II Concept '1971

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