The Mercedes-Benz SL has always been synonymous with automotive elegance and sophistication, with each generation reflecting the spirit of its time. The R107 series, introduced in 1971 as the successor to the W113 “Pagoda” SL, perfectly embodied this ethos. Produced with minimal changes until 1989, this luxury convertible enjoyed an exceptionally long production run.
The R107 marked a significant shift by introducing a V-8 engine to the SL convertible line. This was a necessary upgrade to handle the car’s substantial 3400-pound weight. The design, while recognizably Mercedes-Benz and subtly reminiscent of its “Pagoda” predecessors, presented a visually larger and more substantial vehicle despite similar dimensions.
The initial models in 1972 were marketed as the 350SL, aligning with European model designations, even though they were equipped with a 4.5-liter V-8 engine. This fuel-injected V-8, featuring an overhead cam, delivered a robust 230 horsepower and was paired exclusively with a three-speed automatic transmission. The car boasted a fully independent suspension and standard four-wheel disc brakes, highlighting its performance and engineering sophistication.
Later in 1972, the model designation was revised to 450SL, becoming the standard name moving forward. Concurrently, horsepower ratings were adjusted to the new SAE net standard, resulting in the 450SL’s power being listed at 190 hp. The 1973 model year saw the introduction of substantial safety bumpers at the front and rear, complying with evolving federal safety regulations. By 1975, stricter emissions standards further reduced the engine output to 180 hp with the addition of a catalytic converter.
A significant technological update arrived in 1976 with the adoption of a continuous fuel injection system and transistorized ignition for the SL. Then, in 1978, the Mercedes Benz SL model year brought further refinements, most notably the introduction of automatic climate control and stylish 14-inch aluminum wheels as standard features, enhancing both comfort and aesthetics. The 1978 Mercedes Benz SL maintained the same design and mechanical specifications into 1979.
In 1980, the fuel injection system underwent another revision, which, while improving efficiency, further reduced the horsepower to 160 hp. The 450SL era concluded with the 1980 model year, paving the way for the 380SL to carry the R107 legacy into the subsequent decade. Before its discontinuation, the 450SL achieved an impressive average sales volume of approximately 6,000 units per year. Thanks to their strong reputation and robust build quality, finding a Mercedes Benz Sl 1978 today is relatively easy, offering enthusiasts a chance to own a comfortable and iconic open-top cruiser.
