The Mercedes-Benz 420 SEC is a 2 door coupé style motor vehicle styled by Bruno Sacco with a front positioned engine powering the rear wheels.
The 420 SEC is part of Mercedes-Benz's C 140 model series.
Powering the Mercedes-Benz 420 SEC is a single overhead camshaft, 4.2 litre naturally aspirated 8 cylinder powerplant, with 2 valves per cylinder that provides power and torque figures of 286 bhp (290 PS/213 kW) at 5700 rpm and 410 N·m (302 lb·ft/41.8 kgm) at 3900 rpm respectively.
The engine powers the wheels by means of a 4 speed automatic 'box.
Full specs
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| bodywork | |||
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| Body type | 4/5 seater fixed-head coupé | ||
| Number of doors | 2 | ||
| Designer | Bruno Sacco | ||
| dimensions & weights | |||
| Wheelbase | 2945 mm | 115.9 inches | |
| Track/tread (front) | 1603 mm | 63.1 inches | |
| Track/tread (rear) | 1576 mm | 62 inches | |
| Length | 5065 mm | 199.4 inches | |
| Width | 1912 mm | 75.3 inches | |
| Height | 1455 mm | 57.3 inches | |
| Ground clearance | |||
| length:wheelbase ratio | 1.72 | ||
| Kerb weight | |||
| 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 | |||
| Cylinders | V 8 | ||
| Capacity | 4.2 litre 4196 cc (256.056 cu in) |
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| Bore × Stroke | 92 × 78.9 mm
3.62 × 3.11 in |
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| Bore/stroke ratio | 1.17 | ||
| Valve gear | single overhead camshaft (SOHC)
2 valves per cylinder 16 valves in total |
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| maximum power output | 290 PS (286 bhp) (213 kW) at 5700 rpm |
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| maximum torque | 410 Nm (302 ft·lb) (41.8 kgm) at 3900 rpm |
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| Specific output | 50.8 kW/litre 69.1 ps/litre 68.2 bhp/litre 1.12 bhp/cu in |
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| Specific torque |
97.71 Nm/litre
1.18 ft·lb/cu3 |
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| Engine construction | |||
| Lubrication | |||
| compression ratio | 10:1 | ||
| Fuel system | Bo LH-Jet fuel inj. | ||
| bmep (brake mean effective pressure) | 1227.9 kPa (178.1 psi) | ||
| Maximum RPM | |||
| crankshaft bearings | 5 | ||
| Engine coolant | Water | ||
| Unitary capacity | 524.5 cc | ||
| Aspiration | Normal | ||
| Compressor | N/A | ||
| Intercooler | None | ||
| Catalytic converter | Y | ||
| performance | |||
| Acceleration 0-80km/h (50mph) | |||
| Acceleration 0-60mph | |||
| Acceleration 0-100km/h | |||
| Acceleration 0-160km/h (100mph) | |||
| Standing quarter-mile | |||
| Standing kilometre | |||
| Maximum speed | |||
| Power-to-weight ratio | |||
| Weight-to-power ratio | |||
| 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 | |||
| Turning circle | |||
| Front suspension | I.DW.CS.ARB. | ||
| Rear suspension | I.MLi.CS.ARB.ALC. | ||
| Wheel size front | |||
| Wheel size rear | |||
| Tyres front | |||
| Tyres rear | |||
| Brakes F/R | |||
| Front brake diameter | |||
| Rear brake diameter | |||
| Braked area | |||
| Gearbox | 4 speed automatic | ||
| Top gear ratio | |||
| Final drive ratio | |||
| general | |||
| Carfolio.com ID | 6886 | ||
| Production total | |||
| Model code | |||
| Model family | C 140 | ||
| RAC rating | 42.0 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1992 Mercedes-Benz 420 SEC added before December 1995. Last modified 2019-10-02. |
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