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Mercedes-Benz 300 SL Roadster

(1957 model)

Brief specs of 1957 Mercedes-Benz 300 SL Roadster

2-door 2-seater drophead coupé (convertible coupé), petrol (gasoline) 6-cylinder 12-valve straight (inline) engine, SOHC (single overhead camshaft), 2996 cm3 / 182.8 cu in / 182.8 cu in, 160.3 kW / 215.0 hp / 215.0 hp @ 5800 rpm / 5800 rpm / 5800 rpm, 275.0 N·m / 202.8 lb·ft / 202.8 lb·ft @ 4600 rpm / 4600 rpm / 4600 rpm, manual 4-speed transmission, rear wheel drive, 217 km/h / 135 mph / 135 mph top speed

units: metric UK US

Basic (general) data

Marque (make)Mercedes-BenzIssued from1957
Model300 SL RoadsterIssued until
Serie300Number made
Model familyW 198 IIBody construction
Model code198.042Body designation
ManufacturerMercedes-BenzCountryDE

Bodywork

Base platformNumber of doors2
Bodywork typedrophead coupé (convertible coupé)Number of seats2
Bodywork designerCargo capacity (volume)
Passenger space (volume)5780 l / 204.12 cu ft / 204.12 cu ftMax. cargo capacity (volume)

Dimensions & Weight

Length4570 mm / 179.9 in / 179.9 inTotal (curb) weight1383 kg / 3049 lb / 3049 lb
Width1790 mm / 70.5 in / 70.5 inDry weight
Height1300 mm / 51.2 in / 51.2 inLoad capacity
Wheelbase2400 mm / 94.5 in / 94.5 inGross (max.) weight
Track front1398 mm / 55.0 in / 55.0 inTowing weight
Track rear1448 mm / 57.0 in / 57.0 inWeight distribution (front)
Ground clearance130 mm / 5.1 in / 5.1 inFuel capacity100 l / 22.0 UK gal / 26.4 US gal
Length/wheelbase ratio1.9  

Aerodynamics

Drag coefficient (Cd, Cx, Cw)Frontal area (A)1.98 m2 / 21.3 sq ft / 21.3 sq ft (est.)
Aerodynamic coefficient (Cd×A)Aerodynamic resistance (Aero horse power) at 100 km/h (62 mph)

Engine

Engine CodeM 198 I / 198.980Total number of cylinders6
Engine Typestraight (inline) (Inline, 6 cylinder)Total number of valves12
Engine ManufacturerMercedes-BenzValves per cylinder2
Engine constructionBore85.0 mm / 3.35 in / 3.35 in
Fuelpetrol (gasoline)Stroke88.0 mm / 3.46 in / 3.46 in
Fuel detailsBore/Stroke ratio0.97
Fuel supplyBo mechanical direct fuel inj.Engine displacement2996 cm3 / 182.8 cu in / 182.8 cu in
Engine Main bearings7Unitary capacity499.33 cm3/cylinder / 30.471 cu in/cylinder / 30.471 cu in/cylinder
Cam DesignSOHC (single overhead camshaft)Compression ratio8.6 : 1
SumpdryMax. output power160.3 kW / 215.0 hp / 215.0 hp at 5800 rpm / 5800 rpm / 5800 rpm
AspirationnaturalMax. torque275.0 N·m / 202.8 lb·ft / 202.8 lb·ft at 4600 rpm / 4600 rpm / 4600 rpm
Compressor typeN/AMaximum rpm
IntercoolernoMax. net output (power at the wheels)51.8 kW / 69.5 hp / 69.5 hp (est.)
CoolantwaterSpecific output53.5 kW/l / 1.176 bhp/cu in / 1.176 bhp/cu in
Catalytic converternoSpecific torque91.8 N·m/l / 0.80 lb·ft/cu in / 0.80 lb·ft/cu in

Transmission

Transmission typemanualNumber of gears4
Wheel driverear wheel driveTop gear (drive) ratio1
  Final gear (drive) ratio3.64

Performance

Acceleration 0-50 mph (80 km/h)Top (maximal) speed217 km/h / 135 mph / 135 mph
Acceleration 0-60 mph (97 km/h)Power-to-weight ratio155.5 kW/ton / 117.8 bhp/ton / 117.8 bhp/ton
Acceleration 0-100 km/h10.00 s / 10.00 s / 10.00 sFuel consumption, City (urban)
Acceleration 0-100 mph (160 km/h)Fuel consumption, Road (extra-urban)
Acceleration 80-120 km/h (50-70 mph) in topFuel consumption, Mixed (combined)
Standing ¼mile time Fuel consumption, Euro
Standing kilometer time CO2 emissions
  Range

Chassis

Engine locationfrontEngine alignmentlongitudinal
Steeringrecirculating ballSteering details
Turns lock-to-lock3Turning circle11.5 m / 37.7 ft / 37.7 ft
Suspension frontIndependent, Double wishbones, Coil springsSuspension rearIndependent, Coil springs
Wheels front5.5K x 15Wheels rear5.5K x 15
Tyres front6.50-15Tyres rear6.50-15
Brakes frontdrumBrakes reardrum
Brake diameter front260 mm / 10.2 in / 10.2 inBrake diameter rear260 mm / 10.2 in / 10.2 in
Brakes detailsABS (anti-lock braking system)Braked area

Technical specifications and performance data of Mercedes-Benz 300 SL Roadster

Infobox

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