The Mercedes-Benz SL series has long been synonymous with luxury, performance, and open-top driving pleasure. For enthusiasts and casual admirers alike, the designation itself evokes images of sun-drenched coastal drives and the unmistakable growl of a finely-tuned engine. When the opportunity arose to experience the new SL 450 Roadster, a wave of nostalgia washed over, harking back to the iconic lineage of this celebrated marque.
The nomenclature itself is a subtle nod to the past. Before the current convention of placing the platform class before the numerical designation (S, SL, C, G), models like this were known by reversing the order. Thus, the SL 450 of today would have been christened the 450SL in the golden era of Mercedes-Benz. This immediately brought to mind the introduction of the original “Panzerwagen,” the R 107 roadster, which graced American shores as the 450 SL Roadster in 1972. It was a worthy successor to the beloved “pagoda” SL roadsters – the 230, 250, and 280SL – models that defined elegance and sporty sophistication in their time.
The first encounter with this revolutionary model was through the pages of Motor Trend magazine, a pivotal source for automotive news, industry insights, and authoritative road tests. The June 1971 cover unveiled the captivating lines of the 450 SL, leaving an indelible impression.
Fast forward 45 years, and the allure of the Mercedes SL Roadster remains undiminished. Personal ownership of a 2002 SL500 further cements this enduring appreciation.
The contemporary Mercedes-Benz SL 450 represents a significant evolution from its namesake ancestor. While parking the two side-by-side reveals a clear lineage, the modern iteration is a testament to decades of automotive advancement. The original 450SL boasted a fuel-injected 4.5-liter V-8 engine. In contrast, today’s SL 450 is propelled by a twin-turbocharged V-6. Despite the downsizing, the modern engine delivers superior speed and efficiency by a considerable margin. Operating the soft top of the classic 450SL required a manual process, involving levers and physical effort. The new SL 450, however, features a marvel of engineering – a one-touch automatic retractable hardtop. With the simple press of a button, a mesmerizing ballet of mechanical precision unfolds as the roof elegantly folds and stows itself within the trunk in a mere 15 seconds. Direct comparisons may be largely academic given the generational gap, but the core essence of the SL – a potent blend of performance and open-air freedom – remains unmistakably present.
The current generation SL body style, first introduced in 2003, marked a shift towards retractable hardtop designs, replacing the older SL’s architecture. This platform has undergone several updates and refinements since its inception, with the most recent enhancements for the 2017 model year. The aesthetic appeal is undeniable, boasting contemporary lighting clusters, a modern grille design, and wheel and trim options that seamlessly integrate it within the current Mercedes-Benz family.
For those who might traditionally favor V-8 engines, dismissing the V-6 in the SL 450 would be a mistake. This “magical monster V-6” delivers refined performance, a captivating sound, and impressive mid-range torque that is sure to impress even the most discerning drivers.
Even seasoned V-8 enthusiasts will find little to fault in this 362-horsepower bi-turbo 3.0-liter V-6. It ignites with a satisfying rumble and delivers power akin to an “atomic freight train.” The sensation of acceleration is visceral, as the 369 pound-feet of torque becomes readily available across a broad rev range. The SL 450 isn’t just quick; it’s genuinely fast. The mid-range punch and effortless passing power are guaranteed to elicit a broad smile.
The Cardinal Red test vehicle came equipped with virtually every available option. The SL 450 is an evolution of the previous SL 400, incorporating the 2017 platform updates, a unique grille design, and sportier trim elements. A standout feature is the exceptional 9-speed 9G-Tronic automatic transmission. This gearbox offers manual shift capability via steering wheel paddles or the console shifter. While not a dual-clutch system like those found in Ferrari or Porsche models, this torque converter automatic is meticulously tuned and allows drivers to select modes optimizing for fuel economy, smooth everyday driving, or outright performance. The transmission responds swiftly and executes shifts with precision. It is far from the “slush box” transmissions of the past.
The Mercedes-Benz SL 450 occupies a price point commensurate with its luxury and performance, but the value proposition is evident in every facet of the vehicle. The base price begins at $87,975 including shipping, before options. The test car, comprehensively equipped, reached a total of $101,935. One notable option, the Magic Sky Control panoramic roof, features electrochromic glass that transitions from light to dark at the touch of a button. This innovative feature provides the open feel of a glass roof while mitigating heat and harmful UV rays when set to dark mode. While impressive, it represents a $2500 option that could be omitted for cost savings.
The overall level of fit, finish, and material quality within the SL 450 is truly exceptional. Every surface exudes quality, showcasing thoughtful design and meticulous engineering. The Nappa leather-clad cabin is both elegant and inviting – a superb environment for both driver and passenger.
On the road, whether cruising leisurely or pushing the performance envelope, the SL 450 excels. It is fast, refined, comfortable, and equipped with powerful brakes capable of commanding impressive stopping power. Cornering prowess is akin to a slot car, exhibiting remarkable agility and control. The selectable dynamic driving modes further adjust suspension tuning and other vehicle parameters, influencing ride and handling characteristics. Across diverse road conditions, from smooth highways to winding mountain passes and imperfect surfaces, the SL 450 maintains composure and delivers a consistently rewarding driving experience. Crucially, the comfort and support provided by the seats ensure that even extended, high-speed journeys remain fatigue-free and enjoyable. This is truly world-class automotive engineering.
Two minor critiques surfaced during the evaluation. The start/stop function, designed to enhance fuel efficiency by shutting off the engine at stoplights, exhibits a slight jerkiness upon restarting. While potentially contributing to fuel economy and emissions targets, its real-world impact may be debatable, and its operation in the SL 450 felt somewhat less refined. Consequently, this feature was often disabled to avoid the minor disruptions to smoothness. The second point concerns trunk space when the retractable hardtop is lowered. The mechanism understandably occupies a significant portion of the trunk volume. While an inherent trade-off with retractable hardtop designs, it’s a factor to consider, though not unique to the SL 450. However, it’s worth noting that older soft-top SL models, like the author’s SL500, might offer more trunk usability with the top down.
As a practical consideration, for maximum cargo capacity, alternative vehicle types such as minivans or SUVs are more appropriate.
In conclusion, the new Mercedes-Benz SL 450 stands as an exceptional automobile in virtually every measure. Its striking aesthetics pay homage to its esteemed lineage of classic Mercedes-Benz roadsters. Performance is exhilarating, handling is refined and responsive, and the technological features are comprehensive. Safety and efficiency are paramount, and the overall build quality suggests long-term durability. While the price reflects its premium positioning, the SL 450 delivers a commensurate level of quality and driving pleasure, making it a compelling choice for those seeking a luxurious and thrilling open-top experience.
