BMW Z4 Roadster (E89)
20i (184 Hp) sDrive Steptronic
2011 – 2013 · Petrol · Rear-wheel drive · 8-speed Steptronic automatic
- Power
- 184 Hp
- 0–100 km/h
- 6.9 s
- Top speed
- 232 km/h144 mph
- Combined
- 6.8 l/100 km34.6 mpg
General information
- Brand
- BMW
- Model
- Z4
- Generation
- Z4 Roadster (E89)
- Modification (Engine)
- 20i (184 Hp) sDrive Steptronic
- Start of production
- 2011
- End of production
- 2013
- Powertrain architecture
- Internal combustion engine
- Body type
- Roadster
- Seats
- 2
- Doors
- 2
Performance specs
- Fuel consumption (urban)
- 9.4 l/100 km25.0 mpg
- Fuel consumption (extra urban)
- 5.3 l/100 km44.4 mpg
- Fuel consumption (combined)
- 6.8 l/100 km34.6 mpg
- CO2 emissions
- 159 g/km256 g/mi
- Fuel type
- Petrol (Gasoline)
- Acceleration 0 - 100 km/h
- 6.9 s
- Acceleration 0 - 60 mph (calculated)
- 6.6 s
- Acceleration 0 - 200 km/h
- —
- Maximum speed
- 232 km/h144 mph
- Weight-to-power ratio
- 8.1 kg/Hp17.9 lb/Hp
- Weight-to-torque ratio
- 5.5 kg/Nm16.4 lb/lb-ft
Engine specs
- Power
- 184 Hp
- Power at
- 5000 rpm
- Power per litre
- 92.1
- Torque
- 270 Nm199 lb-ft
- Torque at
- 1250 - 4500 rpm
- Engine layout
- Front, longitudinal
- Engine model/code
- N20B20A
- Engine displacement
- 1997 cm³1997 cm³ (122 cu in)
- Number of cylinders
- 4
- Engine configuration
- Inline
- Cylinder bore
- 84 mm3.3 in
- Piston stroke
- 90.1 mm3.5 in
- Compression ratio
- 10 : 1
- Number of valves per cylinder
- 4
- Fuel injection system
- Direct injection
- Engine aspiration
- TwinPower Turbo, intercooler
- Engine oil capacity
- 5 l1.3 gal
- Coolant
- 8.5 l2.2 gal
Space, volume and weights
- Kerb weight
- 1495 kg3296 lb
- Max. weight
- 1750 kg3858 lb
- Max load
- 255 kg562 lb
- Fuel tank capacity
- 55 l14.5 gal
Dimensions
- Length
- 4239 mm166.9 in
- Width
- 1790 mm70.5 in
- Height
- 1291 mm50.8 in
- Wheelbase
- 2496 mm98.3 in
- Front track
- 1511 mm59.5 in
- Rear (Back) track
- 1559 mm61.4 in
Drivetrain, brakes and suspension
- Drive wheel
- Rear-wheel drive
- Number of gears and type of gearbox
- 8 gears, automatic transmission
- Assisting systems
- ABS (Anti-lock braking system)
- Steering type
- Steering rack and pinion
- Tires size
- 225/45 R17 W
- Wheel rims size
- 8J x 17