Some cars are impressive on their own. Others become even more special when brought together. At Ultrace Germany, the Mercedes-Benz Museum from Stuttgart presented five remarkable machines: the Sauber-Mercedes C9, Mercedes-Benz C11, Mercedes-Benz C292, Mercedes-Benz CLK GTR, and Mercedes-Benz C112. Five cars from different chapters of the brand’s history, each representing a different approach to performance, engineering, and design.
What made the experience even more special was the atmosphere Mercedes had created around the cars. Huge softboxes suspended above them, combined with carefully arranged lighting, visuals, and music, transformed the space into something between a motorsport exhibition and an automotive art installation.
It wasn’t simply a collection of rare Mercedes. It was a chance to see how the same philosophy could take different forms, from a Le Mans-winning endurance racer to an experimental supercar that never reached production.
Sauber-Mercedes C9 & C11 — The Return of the Silver Arrows
Few racing cars carry the historical significance of the Sauber-Mercedes C9. Developed through the partnership between Mercedes-Benz and Swiss constructor Sauber, the C9 became one of the defining machines of the Group C era. In 1989, it delivered a historic one-two finish at the 24 Hours of Le Mans, marking Mercedes-Benz’s return to the top step of the race after more than three decades.
Beneath its long, low bodywork sat a 5.0-litre twin-turbocharged V8 producing approximately 720 horsepower in race trim. At Le Mans, the C9 was capable of reaching speeds close to 400 km/h. Its elongated silhouette, smooth surfaces, and low-drag aerodynamic design were developed to maintain stability while cutting through the air at extraordinary speeds.
Its successor, the Mercedes-Benz C11, arrived in 1990, taking that winning formula even further. Built around a new carbon-fibre monocoque, replacing the C9’s aluminium construction, it was lighter, stiffer, and featured a more advanced aerodynamic package designed to generate greater downforce without sacrificing efficiency.
The C11 retained the twin-turbocharged V8 concept, now producing around 730 horsepower, and quickly proved its capabilities. With drivers including Michael Schumacher, Karl Wendlinger, and Jochen Mass, it helped Mercedes-Benz secure the 1990 World Sportscar Championship.
Despite their different approaches, both cars shared the same philosophy: every line, every surface, and every mechanical solution existed for a reason. The C9 established Mercedes-Benz’s dominance in endurance racing, while the C11 refined that success into one of the most technically accomplished Group C machines of its era.
Mercedes-Benz C292 — The Group C That Never Raced
Among the cars on display, the Mercedes-Benz C292 has perhaps the most unusual story.
Developed by Sauber for the 1992 World Sportscar Championship, the C292 was intended to continue the evolution of Mercedes-Benz’s Group C programme. It followed the C291, which had been developed around the new generation of naturally aspirated 3.5-litre engines introduced under the championship’s changing regulations.
At its heart was the Mercedes-Benz M291, a naturally aspirated 3.5-litre flat-12 engine. Unlike the turbocharged V8 of the C9 and C11, this engine was designed around a different philosophy, using a high-revving configuration to deliver competitive performance under the new regulations.
The C292 continued the move toward lightweight carbon-fibre construction and a more compact aerodynamic package. Its extremely low profile, enclosed cockpit, and carefully integrated rear wing reflected the increasingly sophisticated approach to airflow in the final years of Group C.
Everything about the car suggested an evolution toward greater efficiency: less unnecessary volume, a low centre of gravity, and bodywork shaped around the demands of high-speed circuit racing.
Yet despite the engineering effort behind it, the C292 never competed in a race. Mercedes-Benz withdrew from the World Sportscar Championship after the 1991 season, bringing the project to an end before it could prove itself on track.
That is what makes the C292 so fascinating. Unlike the C9 and C11, its story is not defined by victories or records, but by unrealised potential. A racing car developed for a future that never arrived.
Mercedes-Benz CLK GTR — Racing Before the Road
By the late 1990s, Mercedes-Benz had entered another extraordinary chapter of motorsport. The arrival of the FIA GT Championship created an opportunity for manufacturers to develop increasingly extreme GT1 machines, and Mercedes-AMG responded with the CLK GTR.
Introduced in 1997, the CLK GTR was developed primarily as a racing car, with road-going examples produced to satisfy homologation requirements. Despite sharing certain visual elements with the production CLK, beneath the surface it was an entirely different machine.
Its construction centred around a carbon-fibre monocoque, with a mid-mounted 6.0-litre naturally aspirated V12 producing approximately 630 horsepower. Power was sent to the rear wheels through a six-speed sequential transmission, while a sophisticated racing suspension system kept the car planted under extreme loads.
Aerodynamics played an equally important role. The CLK GTR’s long, low nose, wide front splitter, sculpted bodywork, and enormous rear wing were designed to generate the downforce necessary for GT1 competition. Large air intakes fed the engine and cooling systems, while the car’s exceptionally low stance helped control airflow around and beneath the chassis.
Unlike the more fluid shapes of the earlier Group C cars, the CLK GTR has a much more aggressive visual identity. Its proportions are exaggerated, its surfaces muscular, and almost every opening or aerodynamic element makes its purpose immediately clear.
The engineering proved successful. In its debut season, Bernd Schneider won the 1997 FIA GT Drivers’ Championship, while AMG-Mercedes secured the Teams’ title.
What makes the CLK GTR particularly interesting is the relationship between the racing car and its road-going counterpart. Rather than developing a race car from an existing production model, Mercedes effectively reversed the process. The racing machine came first, and the road car followed.
Five Cars, One Legacy
Seeing these machines together made the evolution of Mercedes-Benz’s performance philosophy particularly clear.
The C9 and C11 represented the pursuit of endurance racing dominance. The C292 captured the final ambitions of a disappearing racing category, while the CLK GTR marked the beginning of another successful era in GT competition.
Completing the collection was the Mercedes-Benz C112, an experimental supercar unveiled in 1991. Powered by a 6.0-litre naturally aspirated V12 producing 408 horsepower, it was developed as a showcase for technologies that were far ahead of their time. From its active suspension and rear-wheel steering to its adjustable aerodynamic elements, the C112 explored ideas that would influence future Mercedes-Benz road cars. It never reached production, but its purpose was never simply to become another supercar. It was a glimpse into the future.
Each of these cars approached performance differently, yet all shared the same underlying obsession with engineering, aerodynamics, and pushing the boundaries of what a car could achieve.
For me, the most memorable part was having the opportunity to study them up close. Details that are easy to overlook in photographs or archival footage become much more apparent in person: the proportions, the complexity of the bodywork, the size of the aerodynamic elements, and the small solutions hidden within each design.
Under the lights at Ultrace Germany, these icons of motorsport history could be appreciated up close, offering a rare opportunity to admire the engineering, craftsmanship, and attention to detail behind each machine.
A huge thank you to the Mercedes-Benz Museum for bringing such an extraordinary collection to the event.
