Review: 2021 Mercedes-Benz SL (R232) AMG SL 55 V8 (476 Hp) 4MATIC+ AMG SPEEDSHIFT MCT 9G

Explore the luxurious and powerful 2021 Mercedes-Benz SL AMG SL 55 V8, a roadster that combines performance with elegance.

Olivia Harper | Mar 24, 2025 | 8 minutes
Review: 2021 Mercedes-Benz SL (R232) AMG SL 55 V8 (476 Hp) 4MATIC+ AMG SPEEDSHIFT MCT 9G

The 2021 Mercedes-Benz SL (R232) AMG SL 55 V8 is a stunning roadster that blends luxury with high performance. With its powerful V8 engine and advanced features, this car is designed for those who appreciate speed and style. Whether you're cruising through the city or embarking on a long-distance journey, the SL 55 offers an exhilarating driving experience.

Understanding the Basics

Before diving into the specifics, let's clarify some key terms. The 'V8' refers to the engine's configuration, which has eight cylinders arranged in a V shape. This setup is known for delivering strong power and performance. The '4MATIC+' is Mercedes-Benz's all-wheel-drive system, providing enhanced traction and stability, especially in challenging driving conditions. The 'AMG SPEEDSHIFT MCT 9G' is a sophisticated 9-speed automatic transmission that ensures smooth and responsive gear changes.

Performance and Power

The heart of the SL 55 is its 4.0-liter V8 engine, producing an impressive 476 horsepower and 700 Nm of torque (which is a measure of rotational force). This power allows the car to accelerate from 0 to 100 km/h (0 to 62 mph) in just 3.9 seconds, making it a thrill to drive. The top speed is a remarkable 295 km/h (183.3 mph), perfect for those who enjoy high-speed adventures.

Despite its performance capabilities, the SL 55 is relatively efficient for a sports car, with a combined fuel consumption of 11.8-12.7 liters per 100 km (19.93 - 18.52 US mpg). However, it's important to note that this car is designed for performance, so fuel efficiency may not be its strongest suit.

Design and Comfort

The SL 55's design is both elegant and functional. As a roadster, it features a sleek, aerodynamic body with a retractable roof, allowing you to enjoy open-air driving. Inside, the car offers a luxurious cabin with high-quality materials and advanced technology. It seats four, making it suitable for small groups or families.

The trunk space is modest, with a minimum of 213 liters (7.52 cu. ft.) and a maximum of 240 liters (8.48 cu. ft.), which is typical for a roadster. This means it's best suited for short trips or weekend getaways rather than long family vacations.

Suitability for Different Lifestyles

City Driving: The SL 55 is a head-turner in urban environments, offering a smooth ride and easy maneuverability. However, its size and turning circle of 12.84 meters (42.13 ft.) might make parking in tight spaces a bit challenging.

Long-Distance Travel: With its comfortable seats and powerful engine, the SL 55 is great for long drives. However, its fuel consumption and limited trunk space may require more frequent stops and careful packing.

Family Use: While it can accommodate four passengers, the SL 55 is more of a luxury sports car than a family vehicle. It's ideal for couples or small families who prioritize style and performance.

Single Ownership: For individuals who love driving and want a car that stands out, the SL 55 is an excellent choice. Its performance and design make it a joy to own and drive.

Adventure Lifestyles: While not an off-road vehicle, the SL 55's all-wheel-drive system provides confidence in various weather conditions, making it suitable for adventurous drives on paved roads.

Strengths and Weaknesses

  • Strengths: Powerful engine, luxurious design, advanced technology, all-wheel drive for stability.
  • Weaknesses: High fuel consumption, limited trunk space, not ideal for large families.

Conclusion

The 2021 Mercedes-Benz SL (R232) AMG SL 55 V8 is a remarkable roadster that offers a blend of luxury and performance. It's best suited for those who value speed, style, and advanced technology. While it may not be the most practical choice for large families or those seeking fuel efficiency, it excels in delivering an exhilarating driving experience. Think about what features matter most to you. Do you need extra cargo space, or is performance your top priority?

Car Specifications

AttributeDetails
BrandMercedes-Benz
ModelSL
GenerationSL (R232)
Modification (Engine)AMG SL 55 V8 (476 Hp) 4MATIC+ AMG SPEEDSHIFT MCT 9G
Powertrain ArchitectureInternal Combustion engine
Body TypeRoadster
Seats4
Doors2
Combined Fuel Consumption11.8-12.7 l/100 km
CO2 Emissions268-288 g/km
Fuel TypePetrol (Gasoline)
Acceleration (0-100 km/h)3.9 sec
Maximum Speed295 km/h
Engine Displacement3982 cm3
Number of Cylinders8
Engine ConfigurationV-engine
Power Output476 Hp
Torque700 Nm
Compression Ratio8.6:1
Fuel Injection SystemDirect injection
Engine AspirationBiTurbo, Intercooler
Kerb Weight1875 kg
Trunk Space (Minimum and Maximum)213 l - 240 l
Fuel Tank Capacity70 l
Length4705 mm
Width1915 mm
Height1359 mm
Wheelbase2700 mm
Drive Wheel SystemAll wheel drive (4x4)
Number of Gears (Transmission Type)9 gears, automatic transmission
Front SuspensionCoil spring, Double wishbone, Transverse stabilizer
Rear SuspensionDouble wishbone, Transverse stabilizer, Coil spring
Front BrakesVentilated discs, 390 mm
Rear BrakesVentilated discs, 360 mm
Assisting SystemsABS, 4-wheel steering
Power SteeringElectric Steering
Tire SizeFront: 255/45 R19, Rear: 285/40 R19
Wheel Rims SizeFront: 9.5J x 19, Rear: 11J x 19
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