Mercedes-Benz 350 SL R107
The Mercedes-Benz 350 SL was the model that introduced the R107 generation in 1971, launching what would become one of the most enduring and successful luxury roadster platforms in automotive history. The R107 SL remained in production for an astonishing eighteen years, from 1971 to 1989, and the 350 SL with its smooth 3.5-liter V8 engine established the character and reputation of the entire range.
The 350 SL's 3.5-liter V8 was a jewel of an engine. Designated M116, it featured a single overhead camshaft per bank, Bosch D-Jetronic electronic fuel injection, and produced 200 horsepower (DIN) in European specification. The engine was silky smooth, remarkably refined, and offered effortless torque delivery that perfectly suited the SL's grand touring character. It was not a sports car engine in the traditional sense — instead, it provided a wave of accessible power that made motorway cruising and boulevard driving equally pleasurable.
The R107 chassis represented a significant advance over the outgoing W113 Pagoda SL. The new car was wider, longer, and substantially more substantial. Safety was a primary consideration — the R107 featured a sturdy passenger cell, deformable front and rear crumple zones, and an available automatic roll bar that deployed if the car began to tip. The double-wishbone front suspension and semi-trailing arm rear provided composed handling with comfort-oriented tuning that prioritized ride quality over outright cornering capability.
Styling was the work of Friedrich Geiger, and it proved to be brilliantly timeless. The R107's clean, elegant lines looked fresh throughout its entire production run — a remarkable achievement spanning nearly two decades. The signature features included the pronounced Mercedes grille, elegant chrome bumpers (later changed to impact-absorbing units for the US market), and the distinctive hardtop that transformed the roadster into a coupe for winter driving.
The 350 SL was the base V8 model in European markets, positioned below the later 450 SL and 500 SL variants. It was particularly popular in Europe, where the 3.5-liter displacement offered a good balance of performance and taxation. The car was rarely sold in the United States, where buyers preferred the larger-displacement 450 SL and later the 380 SL and 560 SL models with their greater power reserves.
Inside, the 350 SL offered a level of luxury and build quality that was genuinely remarkable. The dashboard was a masterpiece of ergonomic design, with clearly legible instrumentation and intuitive controls. Materials were of the highest quality — thick leather, real wood, and precisely fitted trim pieces. Air conditioning, power windows, and central locking were standard equipment, and an available heated rear window for the hardtop made winter use practical.
The R107 SL became synonymous with a certain lifestyle. It was the car of choice for successful professionals, celebrities, and anyone who appreciated understated luxury and effortless performance. Bobby Ewing drove one in Dallas. Princess Diana owned one. The car appeared in countless films, television shows, and magazine features. It became the default image of the Mercedes-Benz SL for an entire generation.
Production of the 350 SL variant totaled approximately 15,304 units, making it one of the less common R107 variants. The broader R107 family, encompassing all engine variants (280 SL, 350 SL, 380 SL, 420 SL, 450 SL, 500 SL, 560 SL), reached over 237,000 units. Today, early 350 SL models represent an accessible entry point into classic Mercedes-Benz ownership. Well-maintained examples with documented service history start around $25,000, while exceptional low-mileage specimens in desirable colors can reach $85,000. The R107 is one of the most usable classic cars available, with robust mechanicals, readily available parts, and a broad specialist support network.
Rust is the primary concern — check subframe mounts, floor pans, wheel arches, and rocker panels thoroughly. The M116 V8 is reliable but timing chain guides deteriorate and replacement is a major engine-out job. Automatic transmission should shift smoothly; rebuilds are expensive but straightforward. Verify hardtop condition and fitment — replacement hardtops are expensive. Climate control system complexity increases repair costs. European-spec cars are preferable to US-spec for performance. Check for evidence of proper valve adjustment history. The D-Jetronic fuel injection can be problematic — ensure all injectors pulse evenly.
The 350 SL was produced from 1971 to 1980 with approximately 15,304 units built. It was the launch model for the R107 generation. Not commonly sold in the US market, where the 450 SL was the primary V8 offering. European-spec cars had D-Jetronic injection (later K-Jetronic). The broader R107 SL family remained in production from 1971 to 1989, with over 237,000 units across all engine variants. US-spec cars had different bumpers, emissions equipment, and engine tuning.