Mercedes-Benz · racing automobile model · 1998–1999

Mercedes-Benz CLK GTR

The Mercedes-Benz CLK GTR is a GT1 sports car built and produced by Mercedes-Benz in conjunction with their then motorsport partner AMG. Intended for racing in the new FIA GT Championship series in 1997, the CLK GTR was designed primarily as a race car. As such, the production of road cars necessary in order to meet homologation standards of GT1 was a secondary consideration in the car's design, i.e. the CLK GTR was a homologation special. After its successful campaign in the 1997 FIA GT Championship, the car was also entered in the first two rounds of the 1998 FIA GT Championship, before being replaced for the 1998 24 Hours of Le Mans. Its successor, the 1998 Mercedes-Benz CLK LM, concluded Mercedes' GT1 program. For 1999, Mercedes introduced the Mercedes-Benz CLR, a sports car built to the Le Mans Grand Touring Prototype (LMGTP) regulations. This sports car was a purpose-built racecar that did not have to abide by the homologation rules of the previous GT1 cars.

Text from Wikipedia (CC BY-SA 4.0).

Successor: Mercedes-Benz CLK LM

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Background

Following the 1955 Le Mans disaster, Mercedes-Benz had withdrawn its factory-backed race team from all motorsport activities. It was not until 1985 that Mercedes reintroduced itself to motorsport, entering the 1985 World Sportscar Championship. Starting off as an engine supplier to Sauber, this partnership bloomed into a full-time factory-backed effort. Despite Mercedes winning the World Sportscar Championship twice in 1989 and 1990, they eventually withdrew at the end of 1991 following disappointing results. However, Mercedes saw success elsewhere, with a burgeoning touring car program in the Deutsche Tourenwagen Meisterschaft, where the 190 E and its Evolution I and II siblings were climbing up the ranks. The 1991 season would see the 190 E Evo II take the honours in the constructors' championship. Klaus Ludwig piloted the car to the 1992 drivers' championship, with the 190 E being replaced by the W202 C-Class following the conclusion of the 1993 season. The C-Class went on to dominate both drivers and constructors championships from 1994 to 1996; as a result of the domination the Deutsche Tourenwagen Meisterschaft/International Touring Car Championship folded in late 1996, with both remaining competitors Opel and Alfa Romeo withdrawing due to the rising costs. Without a top series to compete in, Mercedes-Benz looked towards the BPR Global GT Series, which had recently become an FIA-sanctioned championship, the FIA GT Championship, where Mercedes-Benz saw an opportunity to go against manufacturers such as Porsche and McLaren. The McLaren F1 GTR was the dominant car in this series, and in order to defeat it fellow German marque Porsche built a dedicated racecar, the 911 GT1. It became the first of the manufacturer's "homologation specials", with Norbert Singer modifyin

Specifications

The chassis of the CLK GTR was a carbon-fibre monocoque mated to an aluminium honeycomb frame, constructed by Lola Composites, a division of Lola Cars. The engine was a derivative of the M120 engine found in the R129 SL-Class and W140 S-Class, retitled the LS600, or GT 112. The bore and stroke were kept the same at 89 mm (3.5 in) and 80.2 mm (3.2 in), however, the connecting rods were manufactured from titanium, and the compression ratio was increased from 10.0:1 to 12.0:1. These modifications boosted power to 441 kW (600 PS) at 7,000 rpm, and torque to 700 N⋅m (516 lb⋅ft) at 3,900 rpm, allowing the car to reach a top speed of 330 km/h (205 mph). The engine (which also served as a stressed member) was mounted amidships behind the driver, with power being sent to the rear wheels via a 6-speed sequential manual transmission, giving the car a 0–100 km/h (0–62 mph) time of 3.8 seconds. Several driving aids such as traction control, ABS, active suspension, drive by wire throttle control, were banned, with fore-aft brake bias the only aid allowed. The front and rear suspension were identical, consisting of double wishbones, with pull-rod actuated coil springs with adjustable shocks.

Racing history

The CLK GTR debuted at Mercedes' home track, the Hockenheimring, at the 1997 FIA GT Hockenheim 4 Hours. Bernd Schneider qualified on pole and took the fastest lap, but had to retire due to braking problems. The sister No. 10 CLK GTR only mustered a 27th-place finish, also battling mechanical woes. Still, the pace of the car was promising, and after intense development over the summer break, Mercedes would score their first 1–2 finish at the 1997 FIA GT Nürburgring 4 Hours with Schneider and Klaus Ludwig taking the win. The rest of the season saw the CLK GTR take three more 1–2 finishes, and wins at the 1997 FIA GT Sebring 3 Hours and 1997 FIA GT Laguna Seca 3 Hours would secure Mercedes the constructors' and drivers' championship with Schneider in their maiden season. Mercedes opted not to enter that year's 24 Hours of Le Mans, as AMG understood that the V12 in the CLK GTR was better tailored to the 4-hour sprints of the FIA GT Championship rather than the 24-hour gruel of the Circuit de la Sarthe. Instead, Mercedes and AMG decided to develop a bespoke car for next year's 24 Hours of Le Mans, an evolution of the CLK GTR dubbed the CLK LM, LM for Le Mans.

Straßenversion

The road-legal homologated version of the CLK-GTR would simply gain the suffix Straßenversion, German for Street version. In a similar fashion to the Porsche 911 GT1 in 1996, only a singular road car was completed in 1997 and was shown in that year's Frankfurt Motor Show. The rest of the road cars were built at Affalterbach by AMG in collaboration with HWA over 1998, and production ceased in mid-1999. Many components of the road car were lifted directly from the racecar, including the suspension, the sequential transmission, and the carbon-fibre monocoque. Of the 28 produced, 2 were prototypes, 6 were roadsters, and 20 were coupés, 2 of which left the factory in "SuperSport" specification. Two cars, one coupé and one roadster, also left the factory as right-hand drive for the 29th Sultan of Brunei, Hassanal Bolkiah. Former racing driver and motoring journalist Paul Frère test drove the CLK GTR around the Hockenheimring. Writing for Road & Track magazine, he praised the car's tractability, despite its immense power. He also applauded the effort put in by Mercedes-Benz to make the car more user-friendly, including large amounts of soundproofing to reduce the mechanical noise from the transmission and engine, although critiqued the cramped cockpit space despite the large width of the car, and its driveability in city conditions, due to its non-synchronous transmission and large amount of torque available from low rpm. He ended his review describing the car as a "real work of art". Specifications. The engine was stroked out to 6,898 cc (420.9 cu in) by Ilmor, resulting in a power and torque bump to 622 hp (464 kW; 631 PS) at 6,500 rpm and 731 N⋅m (539 lb⋅ft) at 5,250 rpm. Sending this power to the rear wheels was a 6-speed sequential manual transmission with a four-plate ca

Sections adapted from Wikipedia (CC BY-SA 4.0); text is shortened. Read the full article for the complete history and citations.

Specifications

name

Mercedes-Benz CLK GTR Straßenversion

Manufacturer

Mercedes-AMG, with HWA AG

Production

1998–1999 (28 produced), 2 prototypes, 20 coupés, 6 roadsters

Assembly

Affalterbach, Germany

Class

Sports car (S)

Body style

2-door coupé, 2-door roadster

Layout

Rear mid-engine, rear-wheel-drive

Engine

6898 / M297 E69/E73 V12

Transmission

6-speed sequential manual transmission

Wheelbase

2670 mm

Length

4854 mm

Width

1951 mm

Height

1164 mm, 1100 mm (roadster)

Kerb weight

1440 kg, 1410 kg (roadster)

Predecessor

Mercedes-Benz C112 (spiritual)

Successor

Mercedes-Benz CLK LM Straßenversion

sp

uk

Specification summary from Wikipedia (CC BY-SA 4.0). Measured facts from Wikidata (CC0). Check the linked sources for citations.

More photos

Sources

• Wikidata — https://www.wikidata.org/wiki/Q1754364CC0 1.0 · retrieved 2026-10-01
• Wikipedia — https://en.wikipedia.org/wiki/Mercedes-Benz_CLK_GTRCC BY-SA 4.0 · Text © Wikipedia contributors; revision 1368910977 · retrieved 2026-10-01
• Wikimedia Commons — https://commons.wikimedia.org/wiki/File:Mercedes_CLK_GTR_Crop.jpgCC BY-SA 3.0 · Photo: see file page · retrieved 2026-10-01
• Car Model Index — https://models.autoculturesociety.com/Compiled record. Sources that do not permit reuse are not copied; this index is credited instead.

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