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Mercedes-Benz SL 55 AMG Roadster

(2008 model)

Brief specs of 2008 Mercedes-Benz SL 55 AMG Roadster

2-door 2-seater convertible (cabriolet), petrol (gasoline) 8-cylinder 24-valve V engine, SOHC (single overhead camshaft), 5439 cm3 / 331.9 cu in / 331.9 cu in, 380.0 kW / 509.6 hp / 509.6 hp @ 6100 rpm / 6100 rpm / 6100 rpm, 720.0 N·m / 531.1 lb·ft / 531.1 lb·ft @ 2600 rpm / 2600 rpm / 2600 rpm, automatic 5-speed transmission, rear wheel drive, 250 km/h / 155 mph / 155 mph top speed, consumption 14.6 l/100km / 19.3 mpg-UK / 16.1 mpg-US

units: metric UK US

Basic (general) data

Marque (make)Mercedes-BenzIssued from2008
ModelSL 55 AMG RoadsterIssued until
SerieSL classNumber made
Model familyBody construction
Model codeBody designation
ManufacturerMercedes-BenzCountryDE

Bodywork

Base platformNumber of doors2
Bodywork typeconvertible (cabriolet)Number of seats2
Bodywork designerCargo capacity (volume)198 l / 6.99 cu ft / 6.99 cu ft
Passenger space (volume)1416 l / 50.01 cu ft / 50.01 cu ftMax. cargo capacity (volume)317 l / 11.19 cu ft / 11.19 cu ft

Dimensions & Weight

Length4540 mm / 178.7 in / 178.7 inTotal (curb) weight1955 kg / 4310 lb / 4310 lb
Width1820 mm / 71.7 in / 71.7 inDry weight
Height1300 mm / 51.2 in / 51.2 inLoad capacity25 kg / 55 lb / 55 lb
Wheelbase2570 mm / 101.2 in / 101.2 inGross (max.) weight1980 kg / 4365 lb / 4365 lb
Track frontTowing weight1585 kg / 3494 lb / 3494 lb
Track rearWeight distribution (front)
Ground clearanceFuel capacity80 l / 17.6 UK gal / 21.1 US gal
Length/wheelbase ratio1.77  

Aerodynamics

Drag coefficient (Cd, Cx, Cw)Frontal area (A)2.01 m2 / 21.6 sq ft / 21.6 sq ft (est.)
Aerodynamic coefficient (Cd×A)Aerodynamic resistance (Aero horse power) at 100 km/h (62 mph)

Engine

Engine CodeTotal number of cylinders8
Engine TypeV engine (V8)Total number of valves24
Engine ManufacturerValves per cylinder3
Engine constructionBore97.0 mm / 3.82 in / 3.82 in
Fuelpetrol (gasoline)Stroke92.0 mm / 3.62 in / 3.62 in
Fuel detailsBore/Stroke ratio1.05
Fuel supplyInjectionEngine displacement5439 cm3 / 331.9 cu in / 331.9 cu in
Engine Main bearingsUnitary capacity679.86 cm3/cylinder / 41.488 cu in/cylinder / 41.488 cu in/cylinder
Cam DesignSOHC (single overhead camshaft)Compression ratio9.0 : 1
SumpwetMax. output power380.0 kW / 509.6 hp / 509.6 hp at 6100 rpm / 6100 rpm / 6100 rpm
AspirationMax. torque720.0 N·m / 531.1 lb·ft / 531.1 lb·ft at 2600 rpm / 2600 rpm / 2600 rpm
Compressor typeMaximum rpm
IntercoolerMax. net output (power at the wheels)152.0 kW / 203.8 hp / 203.8 hp (est.)
CoolantSpecific output69.9 kW/l / 1.535 bhp/cu in / 1.535 bhp/cu in
Catalytic converterSpecific torque132.4 N·m/l / 1.16 lb·ft/cu in / 1.16 lb·ft/cu in

Transmission

Transmission typeautomaticNumber of gears5
Wheel driverear wheel driveTop gear (drive) ratio
  Final gear (drive) ratio

Performance

Acceleration 0-50 mph (80 km/h)Top (maximal) speed250 km/h / 155 mph / 155 mph
Acceleration 0-60 mph (97 km/h)Power-to-weight ratio264.5 kW/ton / 200.4 bhp/ton / 200.4 bhp/ton
Acceleration 0-100 km/hFuel consumption, City (urban)17.0 l/100km / 16.6 mpg-UK / 13.8 mpg-US
Acceleration 0-100 mph (160 km/h)Fuel consumption, Road (extra-urban)11.9 l/100km / 23.7 mpg-UK / 19.8 mpg-US
Acceleration 80-120 km/h (50-70 mph) in topFuel consumption, Mixed (combined)14.6 l/100km / 19.3 mpg-UK / 16.1 mpg-US
Standing ¼mile time Fuel consumption, Euro
Standing kilometer time CO2 emissions342 g/km / 550 g/mi / 550 g/mi (est.)
  Range548 km / 341 mi / 341 mi

Chassis

Engine locationfrontEngine alignmentlongitudinal
SteeringSteering detailsPower assisted steering Traction control
Turns lock-to-lockTurning circle12.0 m / 39.4 ft / 39.4 ft
Suspension frontIndependentSuspension rearMulti-link
Wheels frontWheels rear
Tyres front255/35-ZR19Tyres rear255/35-ZR19
Brakes frontventilated discBrakes rearventilated disc
Brake diameter frontBrake diameter rear
Brakes detailsABS (anti-lock braking system), EBD (electronic brake-force distribution), ASC (automatic stabilisation control)Braked area

Technical specifications and performance data of Mercedes-Benz SL 55 AMG Roadster

Infobox

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