The Mercedes-Benz 300 Cabriolet D is a 4 door convertible/cabriolet-bodied motor vehicle with a front positioned engine supplying power to the rear wheels.
The 300 Cabriolet D forms part of Mercedes-Benz's W 186 II series of cars.
Power is produced by a single overhead camshaft, 3 litre naturally aspirated 6 cylinder motor, with 2 valves per cylinder that provides power and torque figures of 113 bhp (115 PS/84 kW) at 4600 rpm and 196 N·m (145 lb·ft/20 kgm) at 2500 rpm respectively.
A 4 speed manual gearbox supplies the power to the wheels.
The quoted kerb weight is 1820 kg.
Maximum stated speed is 155 km/h, or 96 mph.
Full specs
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| bodywork | |||
|---|---|---|---|
| Body type | 4/5 seater convertible/cabriolet | ||
| Number of doors | 4 | ||
| Designer | |||
| dimensions & weights | |||
| Wheelbase | 3050 mm | 120.1 inches | |
| Track/tread (front) | 1480 mm | 58.3 inches | |
| Track/tread (rear) | 1525 mm | 60 inches | |
| Length | 4950 mm | 194.9 inches | |
| Width | 1838 mm | 72.4 inches | |
| Height | 1640 mm | 64.6 inches | |
| Ground clearance | |||
| length:wheelbase ratio | 1.62 | ||
| Kerb weight | 1820 kg | 4012 lb | |
| Weight distribution | |||
| fuel tank capacity | 65 litres | 14.3 [17.2] UK [US] gal. | |
| aerodynamics | |||
| Drag coefficient | |||
| Frontal area | |||
| CdA | |||
| Powertrain | |||
| engine type | naturally aspirated petrol | ||
| Engine manufacturer | Mercedes-Benz | ||
| Engine code | M 186 I / 186.920 | ||
| Cylinders | Straight 6 | ||
| Capacity | 3 litre 2996 cc (182.827 cu in) |
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| Bore × Stroke | 85 × 88 mm
3.35 × 3.46 in |
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| Bore/stroke ratio | 0.97 | ||
| Valve gear | single overhead camshaft (SOHC)
2 valves per cylinder 12 valves in total |
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| maximum power output | 115 PS (113 bhp) (84 kW) at 4600 rpm |
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| maximum torque | 196 Nm (145 ft·lb) (20 kgm) at 2500 rpm |
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| Specific output | 28.1 kW/litre 38.2 ps/litre 37.7 bhp/litre 0.62 bhp/cu in |
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| Specific torque |
65.42 Nm/litre
0.79 ft·lb/cu3 |
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| Engine construction | |||
| Lubrication | wet sumped | ||
| compression ratio | 6.4:1 | ||
| Fuel system | 2 Solex 40 PBJC carburettors | ||
| bmep (brake mean effective pressure) | 822.1 kPa (119.2 psi) | ||
| Maximum RPM | |||
| crankshaft bearings | 7 | ||
| Engine coolant | Water | ||
| Unitary capacity | 499.33 cc | ||
| Aspiration | Normal | ||
| Compressor | N/A | ||
| Intercooler | None | ||
| Catalytic converter | N | ||
| performance | |||
| Acceleration 0-80km/h (50mph) | |||
| Acceleration 0-60mph | |||
| Acceleration 0-100km/h | 18 s | ||
| Acceleration 0-160km/h (100mph) | |||
| Standing quarter-mile | |||
| Standing kilometre | |||
| Maximum speed | 155 km/h (96 mph) | ||
| Power-to-weight ratio | Higher is better 62.95 PS/tonne (1000 kg) 0.06 PS/kg 46.3 kW/tonne (1000 kg) 0.05 kW/kg 62.09 bhp/tonne (1000 kg) 0.06 bhp/kg 0.03 bhp/lb |
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| Weight-to-power ratio | Lower is better 21.6 kg/kW 36.08 lb/bhp |
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| fuel consumption | |||
| Fuel consumption | |||
| universal fuel consumption (calculated from the above) | |||
| litres/100km | |||
| km/litre | |||
| UK MPG | |||
| US MPG | |||
| Carbon dioxide emissions | |||
| Carfolio Calculated CO2 ? | |||
| VED band (UK) | |||
| CO2 Effizienz (DE) | |||
| chassis | |||
| Engine position | front | ||
| Engine layout | longitudinal | ||
| Drive wheels | rear wheel drive | ||
| Torque split | N/A | ||
| Steering | |||
| turns lock-to-lock | 3.300 | ||
| Turning circle | |||
| Front suspension | I.DW.CS.ARB. | ||
| Rear suspension | SwAx.CS. | ||
| Wheel size front | 5K x 15 | ||
| Wheel size rear | 5K x 15 | ||
| Tyres front | 7.00-15 | ||
| Tyres rear | 7.00-15 | ||
| Brakes F/R | Dr/Dr | ||
| Front brake diameter | 260 mm | ||
| Rear brake diameter | 260 mm | ||
| Braked area | |||
| Gearbox | 4 speed manual | ||
| Top gear ratio | 1 | ||
| Final drive ratio | 4.44 | ||
| general | |||
| Carfolio.com ID | 251801 | ||
| Production total | 455 | ||
| Model code | W 186 II | ||
| Model family | W 186 II | ||
| RAC rating | 26.9 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1951 Mercedes-Benz 300 Cabriolet D added 2011-08-12. Last modified 2020-02-02. |
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