The Mercedes-Benz SL, an iconic nameplate, has consistently represented automotive elegance and sophistication. Each generation of the SL seems to both define and be defined by its era. This was certainly true when the R107 series debuted in 1971, replacing the widely admired 230/250/280SL W113 “Pagoda” models. The R107 family, a testament to enduring design and engineering, remained in production with only minor evolutions until 1989, an exceptionally long run for a luxury convertible.
The 1972 Mercedes Benz 350 Sl marked a pivotal moment, introducing a V-8 engine to the SL convertible range for the first time. This upgrade was necessitated by the R107’s increased weight, tipping the scales at a substantial 3400 pounds. Stylistically, the R107 maintained a typically Mercedes-Benz conservative approach, with a design that subtly echoed the lines of the preceding pagoda top cars. Despite similar dimensions on paper, the R107 visually conveyed a significantly larger presence on the road.
Interestingly, the initial 1972 Mercedes Benz 350 SL designation was a nod to European nomenclature. Despite being badged as the 350 SL, these first-year models were actually powered by a robust 4.5-liter V-8 engine under the hood. This fuel-injected V-8, equipped with an overhead camshaft, delivered a potent 230 horsepower. The powertrain was mated to a smooth-shifting three-speed automatic transmission; a manual gearbox was not offered in this configuration. Underneath the stylish exterior, the 1972 Mercedes Benz 350 SL boasted a fully independent suspension system and the reassurance of standard four-wheel disc brakes, reflecting Mercedes-Benz’s commitment to both performance and safety.
However, the “350SL” nameplate was short-lived in the US market. Later in 1972, Mercedes-Benz revised the model designation, and the car became known as the 450SL. This name change coincided with a shift in how horsepower was rated. The introduction of the SAE net standard meant the 450SL‘s power output was now listed at a more conservative 190 horsepower. The following year, 1973, saw another significant change with the integration of substantial safety bumpers, both front and rear, to comply with evolving federal regulations in the United States. By 1975, further tightening emissions standards led to the inclusion of a catalytic converter, which further reduced the engine’s output to 180 horsepower.
The Mercedes Benz 450 SL continued to evolve throughout the decade. 1976 brought the adoption of a continuous fuel injection system and transistorized ignition, enhancing efficiency and reliability. In 1978, automatic climate control and stylish 14-inch aluminum wheels became standard features, adding to the luxury appeal of the SL. 1979 saw no major changes, but in 1980, a revised fuel injection system was introduced, leading to a further decrease in power to 160 horsepower in response to ongoing emissions concerns.
The 450SL era concluded with the 1980 model year, paving the way for the 380SL as its successor and carrying the R107 torch into the 1980s. Despite its relatively short run in its initial 450SL guise, this model averaged approximately 6,000 units produced annually. Thanks to their solid reputation for build quality and enduring appeal, finding a Mercedes Benz 450 SL today is relatively straightforward. These cars remain highly sought-after as comfortable and stylish open-top cruisers, offering a taste of classic Mercedes-Benz luxury and engineering. The 1972 Mercedes Benz 350 SL, while quickly becoming the 450SL, stands as the important starting point of this V8 chapter in the iconic SL story.
