2008-2009 Mercedes-Benz SL Coupe (R230 facelift ) AMG SL 65 Black Series V12 (670 Hp) SPEEDSHIFT

The Mercedes-Benz SL Coupe (R230) facelift, specifically the AMG SL 65 Black Series, represents the pinnacle of performance for the R230 generation. Produced for a limited run from November 2008 to November 2009, this variant was designed as a track-focused, high-performance version of the already potent SL 65 AMG. It stands out as the most powerful SL ever produced, offering a unique blend of luxury and extreme capability. The Black Series was positioned as a halo model, appealing to enthusiasts seeking an uncompromising driving experience and exclusivity within the SL lineup.

Technical Specifications

Brand Mercedes-Benz
Model SL
Generation SL Coupe (R230, facelift 2008)
Type (Engine) AMG SL 65 Black Series V12 (670 Hp) SPEEDSHIFT
Start of production November, 2008
End of production November, 2009
Powertrain Architecture Internal Combustion engine
Body type Coupe
Seats 2
Doors 2
Fuel consumption (economy) – combined (NEDC) 14.4 l/100 km
Fuel consumption (economy) – combined (US mpg) 16.3 US mpg
Fuel consumption (economy) – combined (UK mpg) 19.6 UK mpg
Fuel consumption (economy) – combined (km/l) 6.9 km/l
CO2 emissions (NEDC) 346 g/km
Fuel Type Petrol (Gasoline)
Acceleration 0 – 100 km/h 3.9 sec
Acceleration 0 – 62 mph 3.9 sec
Acceleration 0 – 60 mph 3.7 sec
Maximum speed 320 km/h (198.84 mph), Electronically limited
Emission standard Euro 4
Weight-to-power ratio 2.8 kg/Hp, 358.3 Hp/tonne
Weight-to-torque ratio 1.9 kg/Nm, 534.8 Nm/tonne
Power 670 Hp @ 5400 rpm
Power per litre 112 Hp/l
Torque 1000 Nm @ 2200-4200 rpm (737.56 lb.-ft. @ 2200-4200 rpm)
Engine layout Front, Longitudinal
Engine Model/Code M 275.983
Engine displacement 5980 cm3 (364.92 cu. in.)
Number of cylinders 12
Engine configuration V-engine
Cylinder Bore 82.6 mm (3.25 in.)
Piston Stroke 93 mm (3.66 in.)
Compression ratio 9:1
Number of valves per cylinder 3
Fuel injection system Multi-port manifold injection
Engine aspiration BiTurbo, Intercooler
Valvetrain SOHC
Engine oil capacity 9.5 l (10.04 US qt | 8.36 UK qt)
Kerb Weight 1870 kg (4122.64 lbs.)
Max. weight 2100 kg (4629.71 lbs.)
Max load 230 kg (507.06 lbs.)
Trunk (boot) space – minimum 235 l (8.3 cu. ft.)
Trunk (boot) space – maximum 339 l (11.97 cu. ft.)
Fuel tank capacity 80 l (21.13 US gal | 17.6 UK gal)
Max. roof load 75 kg (165.35 lbs.)
Length 4589 mm (180.67 in.)
Width 1960 mm (77.17 in.)
Height 1310 mm (51.57 in.)
Wheelbase 2560 mm (100.79 in.)
Front track 1684 mm (66.3 in.)
Rear (Back) track 1658 mm (65.28 in.)
Minimum turning circle 14.5 m (47.57 ft.)
Drivetrain Architecture Rear wheel drive
Drive wheel Rear wheel drive
Number of gears and type of gearbox 5 gears, automatic transmission SPEEDSHIFT
Front suspension Coil spring, Independent multi-link suspension
Rear suspension Independent multi-link suspension, Coil spring
Front brakes Ventilated discs
Rear brakes Ventilated discs
Assisting systems ABS (Anti-lock braking system)
Steering type Steering rack and pinion
Power steering Hydraulic Steering
Tires size Front wheel tires: 265/35 R 19Rear wheel tires: 325/30 R 20
Wheel rims size Front wheel rims: 19Rear wheel rims: 20

INTRODUCTION

The Mercedes-Benz SL Coupe (R230) Black Series, launched in late 2008, was a limited-production, high-performance variant of the R230 SL-Class. Built on the R230 platform, which debuted in 2001 and received a facelift in 2008, the Black Series aimed to deliver a more visceral and track-capable experience than the standard SL models. Only 350 units were produced worldwide, making it a highly sought-after collector’s item. The R230 generation SL represented a return to the classic roadster formula for Mercedes-Benz, blending luxury, comfort, and performance in a grand touring package. The Black Series took this formula to an extreme.

Powertrain & Engine Architecture

At the heart of the SL 65 Black Series lies the M275.983 6.0-liter twin-turbocharged V12 engine. This engine, a heavily modified version of the standard M275 V12 found in the SL 65 AMG, produces a staggering 670 horsepower at 5400 rpm and 1000 Nm (737 lb-ft) of torque between 2200 and 4200 rpm. The engine utilizes multi-port fuel injection and features an upgraded intercooler system to manage the increased boost pressure from the twin turbochargers. The engine’s architecture is a 60-degree V12 with a single overhead camshaft (SOHC) per cylinder bank and three valves per cylinder (two intake, one exhaust). The SPEEDSHIFT 5-speed automatic transmission, specifically tuned for the Black Series, features quicker shift times and a more aggressive shift pattern. This transmission was chosen for its robustness and ability to handle the immense power output of the V12 engine.

Driving Characteristics

The SL 65 Black Series delivers a dramatically different driving experience compared to other R230 SL variants. The increased power and torque, combined with a lighter weight (achieved through extensive use of carbon fiber components), result in blistering acceleration – 0 to 60 mph in approximately 3.7 seconds and a top speed electronically limited to 198.84 mph. The SPEEDSHIFT transmission, while not as modern as dual-clutch systems, provides quick and decisive shifts. The suspension is significantly stiffer and lower than the standard SL 65, offering improved handling and reduced body roll. However, this comes at the expense of ride comfort. The car feels planted and responsive, inspiring confidence on both the road and the track. The wider tires and increased track width contribute to enhanced grip and stability.

Equipment & Trim Levels

The Black Series was generously equipped, but focused on performance rather than outright luxury. Standard features included AMG sport seats upholstered in a combination of leather and Alcantara, a flat-bottomed steering wheel, and carbon fiber interior trim. Optional extras included a performance exhaust system, upgraded brakes, and various cosmetic enhancements. The interior, while still luxurious, was more driver-focused than other SL models, with a clear emphasis on functionality and weight reduction. The standard audio system was upgraded, but many of the comfort-oriented options available on other SL trims were omitted to save weight.

Chassis & Braking

The chassis of the SL 65 Black Series underwent significant modifications to enhance its handling and performance. The suspension was lowered and stiffened, and the track width was increased. The car features ventilated disc brakes on all four wheels, providing ample stopping power. The braking system was upgraded with larger rotors and calipers compared to the standard SL 65. The use of lightweight materials, such as carbon fiber for the hood, trunk lid, and rear spoiler, helped to reduce the car’s weight and improve its weight distribution. The rear axle was also widened to accommodate the larger tires and improve stability.

Market Reception & Comparison

The SL 65 Black Series was widely praised by automotive critics for its exceptional performance and handling. It was often compared favorably to other high-performance grand tourers, such as the Porsche 911 Turbo. While the fuel economy of 16.3 US mpg was poor, it was considered acceptable for a car of this caliber. Reliability was generally good, although the complex twin-turbocharged V12 engine required careful maintenance. Compared to the standard SL 65 AMG, the Black Series offered a significantly more engaging and rewarding driving experience, but at the cost of some comfort and refinement. The 1.8L and 1.9 TDI versions of the standard SL were worlds apart in terms of performance and target audience, appealing to buyers seeking fuel efficiency and affordability rather than outright speed.

Legacy

The Mercedes-Benz SL 65 Black Series remains a highly desirable and collectible vehicle. Its limited production run and exceptional performance have ensured its status as a modern classic. The powertrain, while complex, has proven to be relatively reliable when properly maintained. In the used car market, prices for well-maintained examples continue to rise, reflecting the car’s rarity and desirability. The Black Series represents a bold and uncompromising approach to grand touring, and it continues to be celebrated by enthusiasts as one of the most exciting and capable SL models ever produced.

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