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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

Auto Insurance

Defined as: The contract by which the insurer assumes the risk of any loss the owner or operator of a car may incur through damage to property or persons as the result of an accident. There are many specific forms of automobile insurance, varying not only in the kinds of risk that they cover but also in the legal principles underlying them.

In “plain” English, this means coverage that is carried by someone who is driving a motor vehicle that is involved in an accident that causes property damage or personal injury to someone.

Currently, New Hampshire and Wisconsin do not have “compulsory auto insurance liability laws”. Simply put, this means that these states do not require licensed drivers (and there should not be any other kind of driver) to have some type of auto insurance policy that provides at least minimum coverage. The remaining 48 states do have such insurance laws in effect.

You should check with the state you live in if you have questions concerning whether or not you are required to have auto insurance, and also to determine if you are required to have a certain amount of coverage. If you are required to have a certain amount, you will then need to check to see if there is a minimum amount and maximum amount.

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