The Mercedes-Benz 420 SEC is a 2 door coupé-bodied motor vehicle styled by Bruno Sacco with a front mounted engine driving through the rear wheels.
The 420 SEC forms part of Mercedes-Benz's C 126 series of cars.
Its 4.2 litre engine is a naturally aspirated, single overhead camshaft, 8 cylinder that produces 215 bhp (218 PS/160 kW) of power at 5200 rpm, and maximum torque of 329 N·m (243 lb·ft/33.5 kgm) at 3750 rpm.
Its stated weight at the kerb is 1600 kg.
Top quoted speed is 217 km/h, or 135 mph.
Full specs
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| bodywork | |||
|---|---|---|---|
| Body type | 2+2 seater fixed-head coupé | ||
| Number of doors | 2 | ||
| Designer | Bruno Sacco | ||
| dimensions & weights | |||
| Wheelbase | 2845 mm | 112 inches | |
| Track/tread (front) | |||
| Track/tread (rear) | |||
| Length | 5060 mm | 199.2 inches | |
| Width | 1829 mm | 72 inches | |
| Height | 1412 mm | 55.6 inches | |
| Ground clearance | |||
| length:wheelbase ratio | 1.78 | ||
| Kerb weight | 1600 kg | 3527 lb | |
| Weight distribution | |||
| fuel tank capacity | |||
| 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 | 218 PS (215 bhp) (160 kW) at 5200 rpm |
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| maximum torque | 329 Nm (243 ft·lb) (33.5 kgm) at 3750 rpm |
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| Specific output | 38.2 kW/litre 52 ps/litre 51.2 bhp/litre 0.84 bhp/cu in |
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| Specific torque |
78.41 Nm/litre
0.95 ft·lb/cu3 |
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| Engine construction | |||
| Lubrication | |||
| compression ratio | 9:1 | ||
| Fuel system | Bo KE-Jet fuel inj. | ||
| bmep (brake mean effective pressure) | 985.3 kPa (142.9 psi) | ||
| Maximum RPM | |||
| crankshaft bearings | 5 | ||
| Engine coolant | Water | ||
| Unitary capacity | 524.5 cc | ||
| Aspiration | Normal | ||
| Compressor | N/A | ||
| Intercooler | None | ||
| Catalytic converter | |||
| performance | |||
| Acceleration 0-80km/h (50mph) | |||
| Acceleration 0-60mph | 8.3 s | ||
| Acceleration 0-100km/h | 9 s | ||
| Acceleration 0-160km/h (100mph) | |||
| Standing quarter-mile | |||
| Standing kilometre | |||
| Maximum speed | 217 km/h (135 mph) | ||
| Power-to-weight ratio | Higher is better 136.24 PS/tonne (1000 kg) 0.14 PS/kg 100.2 kW/tonne (1000 kg) 0.1 kW/kg 134.38 bhp/tonne (1000 kg) 0.13 bhp/kg 0.06 bhp/lb |
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| Weight-to-power ratio | Lower is better 9.98 kg/kW 16.67 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 | |||
| Turning circle | |||
| Front suspension | |||
| Rear suspension | |||
| Wheel size front | |||
| Wheel size rear | |||
| Tyres front | |||
| Tyres rear | |||
| Brakes F/R | |||
| Front brake diameter | |||
| Rear brake diameter | |||
| Braked area | |||
| Gearbox | |||
| Top gear ratio | |||
| Final drive ratio | |||
| general | |||
| Carfolio.com ID | 7348 | ||
| Production total | |||
| Model code | |||
| Model family | C 126 | ||
| RAC rating | 42.0 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1985 Mercedes-Benz 420 SEC added before December 1995. Last modified 2013-06-19. |
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