The SL 550 is a motor vehicle from Mercedes-Benz, with rear wheel drive, a front located engine and a 2 door convertible/cabriolet body style.
The SL 550 forms part of Mercedes-Benz's R 231 range of cars.
The 8 cylinder, double overhead camshaft turbocharged powerplant has 4 valves per cylinder and a capacity of 4.7 litres. For this model it develops power and torque figures of 449 bhp (455 PS/335 kW) at 5500-6000 rpm and 700 Nm (516 lbft/71.4 kgm) at 1800-3500 rpm respectively.
The engine drives the wheels compliments of a 9 speed automatic gearbox.
Its stated kerb weight is 1820 kg.
Top stated speed is 250 km/h, which equates to 155 mph, claimed fuel consumption is 17/25/20 US MPG EPA city/highway/combined.
Full specs
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Applicable to the USA domestic market(s). | ||
| bodywork | |||
|---|---|---|---|
| Body type | 2 seater convertible/cabriolet | ||
| Number of doors | 2 | ||
| Designer | |||
| dimensions & weights | |||
| Wheelbase | 2586 mm | 101.8 inches | |
| Track/tread (front) | 1595 mm | 62.8 inches | |
| Track/tread (rear) | 1600 mm | 63 inches | |
| Length | 4630 mm | 182.3 inches | |
| Width | 1948 mm | 76.7 inches | |
| Height | 1300 mm | 51.2 inches | |
| Ground clearance | |||
| length:wheelbase ratio | 1.79 | ||
| Kerb weight | 1820 kg | 4012 lb | |
| Weight distribution | |||
| fuel tank capacity | 75 litres | 16.5 [19.8] UK [US] gal. | |
| aerodynamics | |||
| Drag coefficient | |||
| Frontal area | |||
| CdA | |||
| Powertrain | |||
| engine type | turbocharged petrol | ||
| Engine manufacturer | Mercedes-Benz | ||
| Engine code | |||
| Cylinders | V 8 in 90° vee | ||
| Capacity | 4.7 litre 4663 cc (284.554 cu in) |
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| Bore × Stroke | 92.9 × 86 mm
3.66 × 3.39 in |
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| Bore/stroke ratio | 1.08 | ||
| Valve gear | double overhead camshaft (DOHC)
4 valves per cylinder 32 valves in total |
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| maximum power output | 455 PS (449 bhp) (335 kW) at 5500-6000 rpm |
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| maximum torque | 700 Nm (516 ft·lb) (71.4 kgm) at 1800-3500 rpm |
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| Specific output | 71.8 kW/litre 97.6 ps/litre 96.3 bhp/litre 1.58 bhp/cu in |
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| Specific torque |
150.12 Nm/litre
1.81 ft·lb/cu3 |
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| Engine construction | aluminium alloy block & head | ||
| Lubrication | wet sumped | ||
| compression ratio | 10.5:1 | ||
| Fuel system | direct petrol injection | ||
| bmep (brake mean effective pressure) | 1886.4 kPa (273.6 psi) | ||
| Maximum RPM | 6300 rpm | ||
| crankshaft bearings | 5 | ||
| Engine coolant | Water | ||
| Unitary capacity | 582.88 cc | ||
| Aspiration | Turbo | ||
| Compressor | 2 turbochargers | ||
| Intercooler | |||
| Catalytic converter | Y | ||
| performance | |||
| Acceleration 0-80km/h (50mph) | |||
| Acceleration 0-60mph | 4.3 s | ||
| Acceleration 0-100km/h | |||
| Acceleration 0-160km/h (100mph) | |||
| Standing quarter-mile | |||
| Standing kilometre | |||
| Maximum speed | 250 km/h (155 mph) | ||
| Power-to-weight ratio | Higher is better 250.13 PS/tonne (1000 kg) 0.25 PS/kg 183.97 kW/tonne (1000 kg) 0.18 kW/kg 246.7 bhp/tonne (1000 kg) 0.25 bhp/kg 0.11 bhp/lb |
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| Weight-to-power ratio | Lower is better 5.44 kg/kW 9.08 lb/bhp |
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| fuel consumption | |||
| Fuel consumption | 17/25/20 US MPG EPA city/highway/combined | ||
| universal fuel consumption (calculated from the above) | |||
| litres/100km | 13.8/9.4/11.8 l/100km city/highway/combined | ||
| km/litre | 7.2/10.6/8.5 km/l city/highway/combined | ||
| UK MPG | 20.4/30.0/24.0 UK MPG city/highway/combined | ||
| US MPG | 17.0/25.0/20.0 US MPG city/highway/combined | ||
| 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 | power assisted rack & pinion | ||
| turns lock-to-lock | |||
| Turning circle | |||
| Front suspension | |||
| Rear suspension | |||
| Wheel size front | 8½ x 19 | ||
| Wheel size rear | 9½ x 19 | ||
| Tyres front | 255/35 R 19 | ||
| Tyres rear | 285/30 R 19 | ||
| Brakes F/R | VeDi/VeDi-S-ABS | ||
| Front brake diameter | 343 mm | ||
| Rear brake diameter | 320 mm | ||
| Braked area | |||
| Gearbox | 9 speed automatic | ||
| Top gear ratio | 0.6 | ||
| Final drive ratio | 2.65 | ||
| general | |||
| Carfolio.com ID | 553256 | ||
| Production total | |||
| Model code | |||
| Model family | R 231 | ||
| RAC rating | 42.8 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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2018 Mercedes-Benz SL 550 added 2018-05-31. Last modified 2020-03-16. |
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