The Z4 2.5i is a rear wheel drive convertible/cabriolet automobile with a front placed engine, manufactured by BMW.
The BMW Z4 2.5i belongs to the E85 model family from BMW.
The power is produced by a naturally aspirated engine of 2.5 litre capacity. This powerplant features double overhead camshaft valve gear, 6 cylinder layout, and 4 valves per cylinder. It produces 174 bhp (176 PS/130 kW) of power at 5800 rpm, and maximum torque of 230 N·m (170 lb·ft/23.5 kgm) at 3500-5000 rpm.
The engine delivers its power through to the wheels via a 6 speed automatic gearbox.
Stated weight at the kerb is 1375 kg.
It is said to be able to achieve a maxiumum speed of 225 km/h (140 mph), manufacturer claimed fuel consumption is 12.0/6.3/8.4 l/100km urban/extra-urban/combined, and carbon dioxide emissions are 202.0 g/km.
Full specs
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| bodywork | |||
|---|---|---|---|
| Body type | 2 seater convertible/cabriolet | ||
| Number of doors | 2 | ||
| Designer | |||
| dimensions & weights | |||
| Wheelbase | 2495 mm | 98.2 inches | |
| Track/tread (front) | 1473 mm | 58 inches | |
| Track/tread (rear) | 1523 mm | 60 inches | |
| Length | 4091 mm | 161.1 inches | |
| Width | 1781 mm | 70.1 inches | |
| Height | 1299 mm | 51.1 inches | |
| Ground clearance | |||
| length:wheelbase ratio | 1.64 | ||
| Kerb weight | 1375 kg | 3031 lb | |
| Weight distribution | |||
| fuel tank capacity | 55 litres | 12.1 [14.5] UK [US] gal. | |
| aerodynamics | |||
| Drag coefficient | 0.36 | ||
| Frontal area | 1.91 m² | ||
| CdA | 0.69 | ||
| Powertrain | |||
| engine type | naturally aspirated petrol | ||
| Engine manufacturer | BMW | ||
| Engine code | |||
| 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 | 176 PS (174 bhp) (130 kW) at 5800 rpm |
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| maximum torque | 230 Nm (170 ft·lb) (23.5 kgm) at 3500-5000 rpm |
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| Specific output | 52 kW/litre 70.7 ps/litre 69.7 bhp/litre 1.14 bhp/cu in |
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| Specific torque |
92.11 Nm/litre
1.11 ft·lb/cu3 |
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| Engine construction | |||
| Lubrication | wet sumped | ||
| compression ratio | 11:1 | ||
| Fuel system | |||
| bmep (brake mean effective pressure) | 1157.5 kPa (167.9 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 | 7.7 s | ||
| Acceleration 0-160km/h (100mph) | |||
| Standing quarter-mile | |||
| Standing kilometre | |||
| Maximum speed | 225 km/h (140 mph) | ||
| Power-to-weight ratio | Higher is better 128.3 PS/tonne (1000 kg) 0.13 PS/kg 94.36 kW/tonne (1000 kg) 0.09 kW/kg 126.55 bhp/tonne (1000 kg) 0.13 bhp/kg 0.06 bhp/lb |
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| Weight-to-power ratio | Lower is better 10.6 kg/kW 17.7 lb/bhp |
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| fuel consumption | |||
| Fuel consumption | 12.0/6.3/8.4 l/100km urban/extra-urban/combined | ||
| universal fuel consumption (calculated from the above) | |||
| litres/100km | 12.0/6.3/8.4 l/100km urban/extra-urban/combined | ||
| km/litre | 8.3/15.9/11.9 km/l urban/extra-urban/combined | ||
| UK MPG | 23.5/44.8/33.6 UK MPG urban/extra-urban/combined | ||
| US MPG | 19.6/37.3/28.0 US MPG urban/extra-urban/combined | ||
| Carbon dioxide emissions | 202.0 g/km NEDC | ||
| Carfolio Calculated CO2 ? | |||
| VED band (UK) | K | ||
| 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 | 7J x 16 | ||
| Wheel size rear | 7J x 16 | ||
| Tyres front | 225/55 R 16 92V | ||
| Tyres rear | 225/55 R 16 92V | ||
| Brakes F/R | VeDi/VeDi-S-ABS | ||
| Front brake diameter | 286 mm | ||
| Rear brake diameter | 280 mm | ||
| Braked area | |||
| Gearbox | 6 speed automatic | ||
| Top gear ratio | 0.69 | ||
| Final drive ratio | 3.91 | ||
| general | |||
| Carfolio.com ID | 133705 | ||
| Production total | |||
| Model code | |||
| Model family | E85 | ||
| RAC rating | 25.0 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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2005 BMW Z4 2.5i Automatic added 2005-10-25. Last modified 2013-02-28. |
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