The BMW Z4 sDrive28i is a convertible/cabriolet with 2 doors and a front mounted engine which delivers its power through the rear wheels.
The Z4 sDrive28i is part of BMW's E89 series.
The 4 cylinder, double overhead camshaft turbocharged engine has 4 valves per cylinder and a capacity of 2 litres. This unit develops power and torque figures of 240 bhp (243 PS/179 kW) at 5000-6500 rpm and 350 Nm (258 lbft/35.7 kgm) at 1450-4800 rpm respectively.
An 8 speed automatic gearbox transfers the power to the driven wheels.
Quoted kerb weight is 1500 kg.
It is claimed to achieve a maxiumum speed of 209 km/h, or 130 mph, claimed fuel consumption figures are 22/33/26 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 | 2496 mm | 98.3 inches | |
| Track/tread (front) | 1511 mm | 59.5 inches | |
| Track/tread (rear) | 1562 mm | 61.5 inches | |
| Length | 4239 mm | 166.9 inches | |
| Width | 1790 mm | 70.5 inches | |
| Height | 1291 mm | 50.8 inches | |
| Ground clearance | 130 mm | 5.1 inches | |
| length:wheelbase ratio | 1.7 | ||
| Kerb weight | 1500 kg | 3307 lb | |
| Weight distribution | 47.7% front | ||
| 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 | turbocharged petrol | ||
| Engine manufacturer | BMW | ||
| Engine code | N20B20O0 | ||
| Cylinders | Straight 4 | ||
| Capacity | 2 litre 1997 cc (121.864 cu in) |
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| Bore × Stroke | 84 × 90.1 mm
3.31 × 3.55 in |
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| Bore/stroke ratio | 0.93 | ||
| Valve gear | double overhead camshaft (DOHC)
4 valves per cylinder 16 valves in total |
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| maximum power output (SAE net) |
243 PS (240 bhp) (179 kW) at 5000-6500 rpm |
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| maximum torque (SAE net) |
350 Nm (258 ft·lb) (35.7 kgm) at 1450-4800 rpm |
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| Specific output (SAE net) |
89.6 kW/litre 121.9 ps/litre 120.2 bhp/litre 1.97 bhp/cu in |
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| Specific torque (SAE net) |
175.26 Nm/litre
2.12 ft·lb/cu3 |
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| Engine construction | |||
| Lubrication | wet sumped | ||
| compression ratio | 10:1 | ||
| Fuel system | direct petrol injection | ||
| bmep (brake mean effective pressure) | 2202.4 kPa (319.4 psi) | ||
| Maximum RPM | |||
| crankshaft bearings | 5 | ||
| Engine coolant | Water | ||
| Unitary capacity | 499.25 cc | ||
| Aspiration | Turbo | ||
| Compressor | 1 single scroll turbocharger | ||
| Intercooler | |||
| Catalytic converter | Y | ||
| performance | |||
| Acceleration 0-80km/h (50mph) | |||
| Acceleration 0-60mph | 5.4 s | ||
| Acceleration 0-100km/h | 5.7 s | ||
| Acceleration 0-160km/h (100mph) | |||
| Standing quarter-mile | |||
| Standing kilometre | 25.6 s | ||
| Maximum speed | 209 km/h (130 mph) | ||
| Power-to-weight ratio | Higher is better 162.22 PS/tonne (1000 kg) 0.16 PS/kg 119.31 kW/tonne (1000 kg) 0.12 kW/kg 160 bhp/tonne (1000 kg) 0.16 bhp/kg 0.07 bhp/lb |
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| Weight-to-power ratio | Lower is better 8.38 kg/kW 14 lb/bhp |
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| fuel consumption | |||
| Fuel consumption | 22/33/26 US MPG EPA city/highway/combined | ||
| universal fuel consumption (calculated from the above) | |||
| litres/100km | 10.7/7.1/9.0 l/100km city/highway/combined | ||
| km/litre | 9.4/14.0/11.1 km/l city/highway/combined | ||
| UK MPG | 26.4/39.6/31.2 UK MPG city/highway/combined | ||
| US MPG | 22.0/33.0/26.0 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 | 8J x 17 | ||
| Wheel size rear | 8J x 17 | ||
| Tyres front | 225/45 R 17 91V | ||
| Tyres rear | 225/45 R 17 91V | ||
| Brakes F/R | VeDi/VeDi-S-ABS | ||
| Front brake diameter | 330 mm | ||
| Rear brake diameter | 300 mm | ||
| Braked area | |||
| Gearbox | 8 speed automatic | ||
| Top gear ratio | 0.67 | ||
| Final drive ratio | 3.73 | ||
| general | |||
| Carfolio.com ID | 489214 | ||
| Production total | |||
| Model code | |||
| Model family | E89 | ||
| RAC rating | 17.5 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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2016 BMW Z4 sDrive28i Automatic added 2016-07-01. Last modified 2020-03-16. |
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