The Mercedes-Benz 300 SL Roadster is a rear wheel drive road car, with its motor located in the front, and a 2 door convertible/cabriolet body designed by Friedrich Geiger.
It forms part of Mercedes-Benz's W 198 II series of cars.
Its 6 cylinder, single overhead camshaft naturally aspirated powerplant has 2 valves per cylinder and a volume of 3 litres. This unit provides power and torque figures of 215 bhp (218 PS/160 kW) at 5800 rpm and 275 Nm (203 lbft/28 kgm) at 4600 rpm respectively. It features dry sump-type lubrication.
Power is transferred to the wheels through a 4 speed manual gearbox.
Quoted weight at the kerb is 1383 kg.
Full specs
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| bodywork | |||
|---|---|---|---|
| Body type | 2 seater convertible/cabriolet | ||
| Number of doors | 2 | ||
| Designer | Friedrich Geiger | ||
| dimensions & weights | |||
| Wheelbase | 2400 mm | 94.5 inches | |
| Track/tread (front) | 1398 mm | 55 inches | |
| Track/tread (rear) | 1448 mm | 57 inches | |
| Length | 4570 mm | 179.9 inches | |
| Width | 1790 mm | 70.5 inches | |
| Height | 1300 mm | 51.2 inches | |
| Ground clearance | |||
| length:wheelbase ratio | 1.9 | ||
| Kerb weight | 1383 kg | 3049 lb | |
| Weight distribution | |||
| fuel tank capacity | 100 litres | 22 [26.4] UK [US] gal. | |
| aerodynamics | |||
| Drag coefficient | |||
| Frontal area | |||
| CdA | |||
| Powertrain | |||
| engine type | naturally aspirated petrol | ||
| Engine manufacturer | Mercedes-Benz | ||
| Engine code | M 198 I / 198.980 | ||
| 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 | 218 PS (215 bhp) (160 kW) at 5800 rpm |
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| maximum torque | 275 Nm (203 ft·lb) (28 kgm) at 4600 rpm |
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| Specific output | 53.5 kW/litre 72.8 ps/litre 71.8 bhp/litre 1.18 bhp/cu in |
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| Specific torque |
91.79 Nm/litre
1.11 ft·lb/cu3 |
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| Engine construction | |||
| Lubrication | dry sumped | ||
| compression ratio | 8.55:1 | ||
| Fuel system | Bo mechanical direct fuel inj. | ||
| bmep (brake mean effective pressure) | 1153.5 kPa (167.3 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 | 10 s | ||
| Acceleration 0-160km/h (100mph) | |||
| Standing quarter-mile | |||
| Standing kilometre | |||
| Maximum speed | |||
| Power-to-weight ratio | Higher is better 157.62 PS/tonne (1000 kg) 0.16 PS/kg 115.93 kW/tonne (1000 kg) 0.12 kW/kg 155.46 bhp/tonne (1000 kg) 0.16 bhp/kg 0.07 bhp/lb |
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| Weight-to-power ratio | Lower is better 8.63 kg/kW 14.41 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 | 3.000 | ||
| Turning circle | 11.50 m | ||
| Front suspension | I.DW.CS. | ||
| Rear suspension | I.CS. | ||
| Wheel size front | 5½K x 15 | ||
| Wheel size rear | 5½K x 15 | ||
| Tyres front | 6.50-15 | ||
| Tyres rear | 6.50-15 | ||
| Brakes F/R | Dr/Dr | ||
| Front brake diameter | 260 mm | ||
| Rear brake diameter | 260 mm | ||
| Braked area | 2903 cm2 | ||
| Gearbox | 4 speed manual | ||
| Top gear ratio | 1 | ||
| Final drive ratio | 3.64 | ||
| general | |||
| Carfolio.com ID | 111320 | ||
| Production total | |||
| Model code | 198.042 | ||
| Model family | W 198 II | ||
| RAC rating | 26.9 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1957 Mercedes-Benz 300 SL Roadster added 2003-07-04. Last modified 2013-06-19. |
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