The BMW Z4 sDrive23i is a 2 door convertible/cabriolet-bodied automobile with a front located engine powering the rear wheels.
It is part of BMW's E89 family of cars.
It is powered by a naturally aspirated engine of 2.5 litre capacity. This unit features double overhead camshaft valve gear, 6 cylinder layout, and 4 valves per cylinder. It produces 201 bhp (204 PS/150 kW) of power at 6400 rpm, and maximum torque of 250 N·m (184 lb·ft/25.5 kgm) at 2750 rpm.
A 6 speed automatic gearbox delivers the power to the driven wheels.
Quoted kerb weight is 1505 kg.
Maximum claimed speed is 239 km/h (149 mph), claimed fuel consumption is 11.8/6.1/8.2 l/100km urban/extra-urban/combined, and carbon dioxide emissions are 192.0 g/km.
Full specs
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| bodywork | |||
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| Body type | 2 seater convertible/cabriolet | ||
| Number of doors | 2 | ||
| Designer | |||
| dimensions & weights | |||
| Wheelbase | 2496 mm | 98.3 inches | |
| Track/tread (front) | 1511 mm | 59.5 inches | |
| Track/tread (rear) | 1559 mm | 61.4 inches | |
| Length | 4239 mm | 166.9 inches | |
| Width | 1790 mm | 70.5 inches | |
| Height | 1291 mm | 50.8 inches | |
| Ground clearance | |||
| length:wheelbase ratio | 1.7 | ||
| Kerb weight | 1505 kg | 3318 lb | |
| Weight distribution | |||
| fuel tank capacity | 55 litres | 12.1 [14.5] UK [US] gal. | |
| aerodynamics | |||
| Drag coefficient | 0.34 | ||
| Frontal area | 1.96 m² | ||
| CdA | 0.67 | ||
| Powertrain | |||
| engine type | naturally aspirated petrol | ||
| Engine manufacturer | BMW | ||
| Engine code | N52B25O1 | ||
| Cylinders | Straight 6 | ||
| Capacity | 2.5 litre 2497 cc (152.376 cu in) |
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| Bore × Stroke | 82 × 78.8 mm
3.23 × 3.1 in |
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| Bore/stroke ratio | 1.04 | ||
| Valve gear | double overhead camshaft (DOHC)
4 valves per cylinder 24 valves in total |
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| maximum power output | 204 PS (201 bhp) (150 kW) at 6400 rpm |
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| maximum torque | 250 Nm (184 ft·lb) (25.5 kgm) at 2750 rpm |
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| Specific output | 60 kW/litre 81.6 ps/litre 80.5 bhp/litre 1.32 bhp/cu in |
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| Specific torque |
100.12 Nm/litre
1.21 ft·lb/cu3 |
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| Engine construction | |||
| Lubrication | wet sumped | ||
| compression ratio | 11:1 | ||
| Fuel system | EFI | ||
| bmep (brake mean effective pressure) | 1258.1 kPa (182.5 psi) | ||
| Maximum RPM | |||
| crankshaft bearings | |||
| Engine coolant | Water | ||
| Unitary capacity | 416.17 cc | ||
| Aspiration | Normal | ||
| Compressor | N/A | ||
| Intercooler | None | ||
| Catalytic converter | Y | ||
| performance | |||
| Acceleration 0-80km/h (50mph) | |||
| Acceleration 0-60mph | |||
| Acceleration 0-100km/h | 7.3 s | ||
| Acceleration 0-160km/h (100mph) | |||
| Standing quarter-mile | |||
| Standing kilometre | 27.7 s | ||
| Maximum speed | 239 km/h (149 mph) | ||
| Power-to-weight ratio | Higher is better 135.41 PS/tonne (1000 kg) 0.14 PS/kg 99.59 kW/tonne (1000 kg) 0.1 kW/kg 133.55 bhp/tonne (1000 kg) 0.13 bhp/kg 0.06 bhp/lb |
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| Weight-to-power ratio | Lower is better 10.04 kg/kW 16.77 lb/bhp |
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| fuel consumption | |||
| Fuel consumption | 11.8/6.1/8.2 l/100km urban/extra-urban/combined | ||
| universal fuel consumption (calculated from the above) | |||
| litres/100km | 11.8/6.1/8.2 l/100km urban/extra-urban/combined | ||
| km/litre | 8.5/16.4/12.2 km/l urban/extra-urban/combined | ||
| UK MPG | 23.9/46.3/34.4 UK MPG urban/extra-urban/combined | ||
| US MPG | 19.9/38.6/28.7 US MPG urban/extra-urban/combined | ||
| Carbon dioxide emissions | 192.0 g/km NEDC | ||
| Carfolio Calculated CO2 ? | |||
| VED band (UK) | J | ||
| 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 | 8J x 17 | ||
| Wheel size rear | 8J x 17 | ||
| Tyres front | 225/45 R 17 91W | ||
| Tyres rear | 225/45 R 17 91W | ||
| Brakes F/R | VeDi/VeDi-S-ABS | ||
| Front brake diameter | 300 mm | ||
| Rear brake diameter | 300 mm | ||
| Braked area | |||
| Gearbox | 6 speed automatic | ||
| Top gear ratio | 0.69 | ||
| Final drive ratio | 3.73 | ||
| general | |||
| Carfolio.com ID | 192181 | ||
| Production total | |||
| Model code | |||
| Model family | E89 | ||
| RAC rating | 25.0 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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2008 BMW Z4 sDrive23i Automatic added 2008-12-14. Last modified 2013-02-28. |
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