Mercedes C112, a revolutionary gullwing who came not to be born
Mercedes launched its spectacular 300SL "Gullwing" in 1954, after a couple of years of success in competition racing version. In the late 80s, Mercedes returned to compete officially - after nearly 40 years of voluntary withdrawal from the competition - a C11 developed with Sauber, with which the World Sportscar Championship garnered 1990. At the Frankfurt Motor Show 1991, Mercedes introduced the C112, the spiritual successor to the Mercedes 300 SL, a technological showcase that is not produced in series.
It was the first gullwing after the original 300 SL of 1954.
The Mercedes C112 was just a prototype that debuted some time revolutionary technologies, it would take years to reach production. Conceived as a street version of the Mercedes-Sauber C11, was based on the same base: a monocoque of carbon fiber and kevlar. Its design was not particularly captivating: he had a serious frontal with large optical and a defense in which with a diffuser and a discreet spoiler optics that could well have come from a Mercedes S-Class are of the age.
A showcase of high technology
The real feat of Mercedes C112 was invisible. It was a first class technology showcase. Its main novelty was a System ABC (Active Body Control), essentially one active suspension system. Connected to sensor body and chassis, the combination of hydraulic and electromechanical adjusted in real time the hardness of the suspension C112 depending on the driving style and road characteristics. Only from just 5 years ago have become popular such systems in sports.
Many of the technologies are still extras in premium vehicles.
Another novelty was the standard equipment of ABS - in the 90 itself was a novelty - and ASR traction control. These developments had already been invented by Mercedes made a few years, but never applied to a high-flying sport. Besides of ABS and traction control, the car also had electronic brake distribution (EBD). Innovation does not stop there: also premiered a system for measuring tire pressure TPMS and adaptive cruise control.
These developments would not be incorporated into production cars until just five or ten years ago. In terms of aerodynamics, the Mercedes C112 had an excellent drag coefficient, but I could vary the angle of attack of your rear spoiler. Improved cornering at high speed and served as airbrake in heavy braking. The Mercedes McLaren SLR would be the first production Mercedes to equip such a system, 12 years after the presentation of Mercedes C112.
Type pushrod suspension was identical to that of the Sauber C11 racing.
The C112 also had a flat bottom and a functional rear diffuser. The car was powered by a new engine then: 6.0 V12 atmospheric that developed 408 hp and maximum torque of 580 Nm. This atmospheric silky - ended up being used by the S 600 and CL 600 - passed all its power to the rear wheels by a manual gearbox six relations. Weighing 1.570 kg was able to reach 100 km / h in 4.9 seconds, and a tip speed of about tremendous 310 km / h.
Mercedes 700 deposits accepted this supercar, but failed to produce the C112 series, which would have been prohibitively expensive. He preferred to gradually apply the technologies in road vehicles.
Source: Petrolicious | eMercedesBenz
In Diariomotor: Mercedes C111, laboratory tests and records of the 70s