The Mercedes-Benz SL lineage is synonymous with automotive elegance and timeless design, each generation mirroring and shaping the trends of its era. The arrival of the R107 series in 1971, replacing the celebrated 230/250/280SL W113 ‘Pagoda’ models, perfectly exemplified this. This new breed of SL convertibles, including the initial 1972 Mercedes Benz 350SL, embarked on an impressive production journey with minimal alterations until 1989, a testament to its enduring appeal as a luxury convertible.
For the R107, Mercedes-Benz made a significant stride by introducing a V-8 engine into their convertible range. This was a necessary adaptation, considering the increased weight of the new SL, tipping the scales at around 3400 pounds. The styling, while still embodying Mercedes’ signature understated sophistication, subtly echoed the lines of the preceding pagoda top models. Despite maintaining similar dimensions to its predecessor, the R107, and especially the 1972 Mercedes Benz 350SL, conveyed a more substantial and imposing presence on the road.
The inaugural models of 1972 were designated as the 350SL, aligning with European nomenclature, even though under the hood resided a robust 4.5-liter V-8 engine specifically for the US market. This fuel-injected V-8, equipped with an overhead camshaft, generated a respectable 230 horsepower. It was exclusively paired with a three-speed automatic transmission, reflecting the luxury touring nature of the car, with no manual gearbox option offered. The 1972 Mercedes Benz 350SL also boasted a fully independent suspension system and standard four-wheel disc brakes, underscoring its blend of performance and refined driving dynamics.
A pivotal change occurred in 1972 itself when the model’s designation was revised, and the 450SL became the standard name moving forward in the US market. Another significant adjustment was in how horsepower was measured. The introduction of the SAE net rating system led to the 450SL’s power being officially listed at 190 hp, reflecting a more realistic representation of usable power. The subsequent year, 1973, saw the 450SL undergo further modifications to comply with evolving federal safety regulations, most notably the addition of substantial safety bumpers both at the front and rear. By 1975, increasingly stringent emissions requirements led to a further reduction in output to 180 hp with the incorporation of a catalytic converter.
In 1976, the SL models were enhanced with a continuous fuel injection system, alongside the introduction of transistorized ignition, improving both efficiency and reliability. Further refinements came in 1978 when Mercedes-Benz made automatic climate control and stylish 14-inch aluminum wheels standard features, enhancing the luxury and comfort quotient. While the model year 1979 remained largely unchanged, 1980 brought another revision to the fuel injection system, resulting in a further power decrease from 180 hp to 160 hp for the 450SL.
The 450SL era concluded with the 1980 model year, with the 380SL stepping in to carry the SL torch through the 1980s. Before its departure, the 450SL had achieved an impressive average production volume of approximately 6,000 units annually. Coupled with Mercedes-Benz’s renowned reputation for quality and durability, these classic roadsters are readily available in today’s market, offering enthusiasts a comfortable and stylish open-top cruising experience, all starting from the legacy established by the 1972 Mercedes Benz 350SL.
