The 2009 Mercedes-Benz SL550 Convertible emerges as a grand roadster, designed to impress with its aesthetics and a suite of practical features. While it may lean more towards making a statement than outright sports car thrills, the SL550 still holds its own, especially when the sun is out and the roads get twisty.
Initially, stepping into the 2009 Mercedes-Benz SL550 might not deliver the immediate adrenaline rush of more aggressively styled sports cars. However, its charm quickly unfolds as you experience its capabilities on winding roads and appreciate its luxurious presence. The car’s tech features, particularly the adaptive cruise control and active suspension, stand out, offering a blend of modern convenience and performance enhancement.
Tech That Impresses and Disappoints
Despite an older-style interface for the car’s system, the 2009 SL550 packs in updated electronics where it counts. The navigation system, while not brimming with cutting-edge features, is hard drive-based and efficient. Integration with iPods and Bluetooth cell phones is seamless, bringing the car’s connectivity up to modern standards of the time.
However, the cabin tech isn’t without its drawbacks. The plastic switchgear for the system interface feels somewhat cheap, undermining the otherwise luxurious feel of the interior. Furthermore, the navigation system lacks some of the advanced functionalities found in contemporary portable GPS devices. While functional, it’s clear that this aspect of the SL550 is where time has marched on most noticeably.
Cabin Comfort and Luxury Touches
Inside, the 2009 Mercedes-Benz SL550 Convertible aims for luxury. The white leather and wood trim in our test model created an upscale ambiance. Features like the Air Scarf system, designed to blow warm air around your neck for comfortable top-down driving in cooler weather, and massage seats, add to the premium experience.
While the Air Scarf system’s effectiveness might vary compared to other Mercedes models, and the massage seats offer a more subtle pulsation than a deep massage, these features still contribute to the overall sense of indulgence. The retractable hardtop is a significant plus, offering the security and quiet of a coupe with the open-air freedom of a convertible, although it does compromise trunk space when retracted.
The Harmon Kardon Logic 7 sound system is a definite highlight. It delivers exceptional audio quality, with clarity and richness that enhances the driving experience. With eight speakers strategically placed within the cabin, including a center fill and subwoofer, the sound system is optimized for the two-seater configuration, ensuring an immersive audio experience.
Performance and Handling: More Than Just a Cruiser
Under the hood, the 2009 Mercedes-Benz SL550 Convertible is powered by a robust 5.5-liter V-8 engine. This powerplant delivers 382 horsepower and 391 pound-feet of torque, providing ample power for brisk acceleration and confident cruising. Mercedes-Benz claims a 0-60 mph time of 5.1 seconds, and the engine’s responsiveness on the road confirms its potent performance.
The SL550’s handling is further refined by Mercedes-Benz’s Active Body Control (ABC) system. This active suspension technology significantly reduces body roll, especially in Sport mode, allowing for surprisingly flat cornering. While it prioritizes control and stability over raw excitement, the ABC system ensures a composed and confident driving experience, particularly on winding roads.
Mated to the V-8 engine is a seven-speed automatic transmission. This transmission offers Comfort, Sport, and Manual modes, allowing drivers to tailor the driving experience to their preferences. Sport mode sharpens gear changes and holds gears longer for more dynamic driving, while manual mode provides direct control via the gear lever or steering wheel-mounted paddles.
Despite its powerful engine, the 2009 SL550 manages a respectable fuel economy for its class. Real-world driving yielded around 17.4 mpg in mixed conditions, aligning with EPA estimates of 13 mpg city and 21 mpg highway.
Final Verdict: A Luxury Roadster with Tech and Performance
The 2009 Mercedes-Benz SL550 Convertible is a substantial investment, reflecting its status as a luxury roadster. While it carries a premium price tag, it delivers a compelling blend of style, technology, and performance. Its strengths lie in its striking aesthetics, comfortable and feature-rich cabin, potent V-8 engine, and advanced suspension system.
However, potential buyers should be aware of its limitations. The navigation system is dated, the plastic switchgear feels out of place in a luxury car, and luggage space is restricted, especially with the top down. Ultimately, the 2009 Mercedes-Benz SL550 Convertible appeals to those who prioritize a luxurious and stylish open-top driving experience with capable performance and a suite of comfort and tech features, rather than outright sports car agility or the latest in-car technology.
