Mercedes-Benz SLC. The elegant gran turismo from the 107 series

The Mercedes-Benz R107 was launched in 1971 as the successor to the Pagoda. For seventeen years, it was a resounding success for Mercedes-Benz. In its wake, the C107, the longer coupé version, also appeared in February 1972, beautifully combining powerful lines and elegance. Today, we're taking a moment to reflect on this magnificent coupé, bringing it out of the shadow of the long-produced R107. We're paying tribute to this beautiful gran turismo, which remained in production for almost ten years.

When Mercedes-Benz presented the SLC in Paris in October 1971, it was clear that the four-seater coupé offered an excellent alternative to the SL from the 107 model series. The SLC (C107) naturally shared the characteristics of the series roadster and certainly presented its own unique character. The SLC evolved into a fully-fledged gran turismo for long-distance travel. Series production began in February 1972 and ran until August 1981. During this period, Mercedes-Benz built 62.888 units. This makes the SLC considerably rarer than the SL roadster, potentially making it even more attractive to enthusiasts and collectors today.

Development: comfort and safety

Although the SLC was technically closely related to the SL, its development required more than simply fitting a fixed roof. The wheelbase was extended by 36 centimeters to accommodate two rear seats. The body received additional reinforcements to maintain torsional rigidity and maintain a high level of comfort. As was typical of Mercedes in the 1970s, safety was a key priority. The SLC featured features such as front and rear crumple zones, a rigid passenger compartment, and a securely positioned fuel tank above the rear axle. The design was sleek, with large side windows without a B-pillar, giving the car an elegant and airy appearance. The louvers behind the rear side windows were a distinctive design feature of this Mercedes-Benz coupé.

Debut with 3.5 V8, continued with 450 SLC and 280 SLC

At its introduction, the 350 SLC was introduced, equipped with a 3,5-liter V8 (M116) producing approximately 200 hp. The 450 SLC followed in 1973, equipped with the 4,5-liter V8 (M117). This engine produced approximately 225 hp in European specifications and further enhanced the SLC's character as a true long-distance cruiser with powerful acceleration. Furthermore, the 450 SLC featured a rear axle design designed to reduce both drivetrain reaction when moving off and pitching under braking. After the oil crisis, the German luxury manufacturer introduced the 280 SLC in 1974. This version featured the 2,8-liter inline-six (M110) with double overhead camshafts and approximately 185 hp. A major technical update was implemented in the mid-1970s: the electronic D-Jetronic injection system was replaced by the mechanical K-Jetronic. This significantly improved reliability, cold starting and emissions performance.

Five-liter V8

A special chapter in the history of the SLC is the 450 SLC 5.0, introduced in 1977 for homologation in international rallying. This version featured a five-liter V8 with approximately 240 hp and was distinguished by an aluminum hood and trunk lid to save weight. The 5.0 achieved impressive results in tough long-distance rallies such as the Rallye Bandama. With approximately 2.700 units built, it is today one of the most sought-after SLC variants. The range was revised for the last time in 1980. The 350 and 450 made way for the 380 SLC (3,8-liter V8) and the 500 SLC with the five-liter engine. At the same time, the outdated three-speed automatic transmission was replaced by a modern one-speed automatic. This resulted in better power distribution and greater efficiency. Another novelty (option) was the use of ABS, an option offered by Mercedes-Benz on the 280 SLC, the 380 SLC and the 500 SLC (from March 1980).

Bandama winner in 1979

Mercedes-Benz also entered the 450 SLC 5.0 in demanding international rallies. Its most illustrious achievement came in 1979, when Hannu Mikkola and Arne Hertz won the grueling Bandama with the Benz, held that year from October 9th to 14th in Ivory Coast. The victory wasn't entirely without a struggle. The duo seemed poised to retire with the Mercedes-Benz, but their old comrades from the Toyota rally team came to the rescue. They helped the Scandinavian team get back on track, and as a result, Mikkola and Hertz were honored in Africa.

An underrated classic

In 1981, the SLC was succeeded by the SEC coupés of the new S-Class generation. However, the C107 holds a unique position in Mercedes history: it is the only stretched coupé based on an SL. While the SL often gets all the attention, appreciation for the SLC is steadily growing. With its relatively limited production run, solid engineering, and comfortable character, the Mercedes-Benz SLC (C107) is today an attractive and characterful classic for those seeking something different than the usual convertible. The 450 SLC became the most sought-after variant; the five-liter versions were the most exclusive, with fewer than three thousand examples built.