Mercedes-AMG SL 43: Is the Four-Cylinder Roadster Worth the Compromise?
As a performance car enthusiast with over a decade immersed in the automotive industry, I’ve witnessed firsthand the evolution of grand touring vehicles. The Mercedes-AMG SL, in its latest iteration, represents a significant shift. Leaving behind its purely luxurious image, the current SL, crafted entirely by AMG, promises a sportier driving experience. But with that performance comes a hefty price tag. While the SL 55 and SL 63 offer thrilling V8 power, their starting prices can easily reach well over $150,000. The question is: can the new, less expensive Mercedes-AMG SL 43, with its four-cylinder engine, truly deliver the SL experience? Let’s dive in.
Bridging the Gap: The SL 43’s Mission
The Mercedes-AMG SL 43 was introduced to bridge a considerable price gap in the SL lineup. Starting around $111,000, it significantly undercuts the V8-powered models. This price reduction is largely due to the substitution of AMG’s legendary 4.0-liter V8 engine with a high-performance 2.0-liter turbocharged inline-four. Additionally, the standard all-wheel-drive system found in the pricier models is replaced with a rear-wheel-drive configuration in the SL 43.
Is this a step too far? Can a four-cylinder SL truly capture the spirit of this iconic roadster? After spending a week behind the wheel of the SL 43, I have a
The Heart of the Matter: The Electrified Four-Cylinder
Let’s address the elephant in the room: the engine. The Mercedes-AMG SL 43 features a 2.0-liter turbocharged inline-four. While this engine is similar to those found in AMG’s “45” models, it boasts a crucial distinction: an electric turbocharger. Borrowed from Formula 1 technology, this electric turbocharger utilizes a small electric motor positioned between the turbine and compressor wheels. The result? Near-instantaneous boost response, minimizing turbo lag and providing exhilarating acceleration.
This engine produces a respectable 375 horsepower and 354 lb-ft of torque. While that might seem modest for a roadster tipping the scales at nearly 4,000 pounds, the SL 43’s engine is a surprisingly eager performer. Paired with a quick-shifting nine-speed automatic transmission, it delivers power smoothly and confidently. Sure, it’s down almost 100 horsepower compared to the SL 55, but the responsiveness of this four-cylinder often makes up for the difference, and the SL 43 performance is satisfying.
The SL 43 engine sound is also noteworthy. While it lacks the deep rumble of the V8, the quad exhaust tips emit a surprisingly aggressive and engaging growl. Coupled with distinct turbocharger noises, the overall auditory experience is far from disappointing and adds to the SL 43 driving experience.
Handling and Dynamics: A Pleasant Surprise
When the road gets twisty, the Mercedes-AMG SL 43 truly shines. Despite not being significantly lighter than its V8 siblings, it retains impressive agility and balance. The front end offers remarkable grip, and the car eagerly changes direction with minimal body roll. What’s even more impressive is that it achieves this level of performance without the advanced active suspension systems found in the higher-end models. The standard suspension setup, consisting of traditional shocks and steel springs, provides a well-tuned and engaging driving experience. The SL 43 handling is crisp and precise.
Compromises in Daily Driving
While the SL 43 excels on winding roads, it reveals some shortcomings in everyday driving situations. The turbocharged engine, while responsive, can feel somewhat high-strung. Even in Comfort mode, the engine doesn’t fully settle down, and vibrations can be felt at a standstill.
Furthermore, the powertrain calibration could use some refinement. The throttle response can be overly sensitive at times, making smooth starts challenging. And when demanding sudden acceleration at cruising speeds, the nine-speed transmission can hesitate, leaving you waiting for the right gear. The SL 43 roadster doesn’t quite possess the dual-personality of its V8 counterparts, excelling when driven aggressively but lacking refinement in everyday scenarios.
Exterior and Interior: Classic SL Elegance
Fortunately, the SL 43 changes mostly stay under the hood. The exterior design remains largely unchanged, retaining the sleek and elegant proportions that define the SL. Minor updates include revised bumpers and rounded exhaust tips, but these are subtle details that most casual observers wouldn’t notice. For those who appreciate the SL’s aesthetics but were deterred by the higher price tag, the SL 43 offers an appealing option.
The interior is equally impressive, mirroring the luxurious design and high-quality materials found in the more expensive models. The 12.3-inch digital instrument cluster and vertically oriented 11.9-inch central touchscreen provide a modern and sophisticated feel. The cabin is well-insulated from wind and road noise, creating a comfortable environment for both driver and passenger. And, as with all SL models, the soft top retracts in just 15 seconds at speeds up to 37 mph, allowing you to enjoy open-air driving at a moment’s notice. This focus on maintaining the luxurious interior of the SL contributes significantly to the overall appeal of the Mercedes SL 43.
Value Proposition: Is It Worth It?
The ultimate question is whether the SL 43 value is worth the compromises. Consider a well-equipped SL 43 with an as-tested price of around $120,000. That’s a significant saving compared to a similarly equipped SL 63, which could easily exceed $200,000.
For many buyers, the savings will be worth it. The SL 43 offers a stunning exterior, a luxurious interior, and a surprisingly engaging driving experience. It opens the SL lineup to a broader market segment, making this iconic roadster more accessible to a wider range of buyers. The Mercedes-Benz SL 43 AMG is a compelling choice.
A Promising Foundation
It’s important to remember that the SL 43’s shortcomings primarily stem from powertrain calibration issues. These are issues that Mercedes-AMG can address and refine in future model years.
To be clear, the 2025 SL 43 should not be dismissed based solely on its cylinder count. While I may prefer the V8-powered SLs for their charismatic sound and greater versatility, the four-cylinder engine in the SL 43 possesses plenty of character and deserves its place under the SL’s hood.
The 2024 Mercedes-AMG SL 43 demonstrates that a car with a great foundation doesn’t necessarily need all the bells and whistles to deliver a rewarding driving experience. And once Mercedes-AMG addresses the powertrain issues, I believe the SL 43 has the potential to become the right car to complete the SL lineup.
Conclusion: Embrace the Evolution
The Mercedes-AMG SL 43 represents a bold step for the SL nameplate. While it may not offer the raw power and visceral thrills of its V8 siblings, it provides a compelling alternative for buyers seeking a stylish, luxurious, and engaging roadster at a more accessible price point. With some refinement to the powertrain calibration, the SL 43 could become a truly exceptional car.
Ready to experience the SL 43 for yourself? Contact your local Mercedes-Benz dealer in your area today to schedule a test drive and discover if this four-cylinder roadster is the perfect fit for your lifestyle.
