BMW Z4 Roadster (E85 LCI, facelift 2006)
2.5i (177 Hp) Steptronic
2006 – 2008 · Petrol · Rear-wheel drive · 6-speed automatic
- Power
- 177 Hp
- 0–100 km/h
- 7.5 s
- Top speed
- 225 km/h140 mph
- Combined
- 8.4 l/100 km28.0 mpg
General information
- Brand
- BMW
- Model
- Z4
- Generation
- Z4 Roadster (E85 LCI, facelift 2006)
- Modification (Engine)
- 2.5i (177 Hp) Steptronic
- Start of production
- 2006
- End of production
- 2008
- Powertrain architecture
- Internal combustion engine
- Body type
- Roadster
- Seats
- 2
- Doors
- 2
Performance specs
- Fuel consumption (urban)
- 12.0 l/100 km19.6 mpg
- Fuel consumption (extra urban)
- 6.3 l/100 km37.3 mpg
- Fuel consumption (combined)
- 8.4 l/100 km28.0 mpg
- Fuel type
- Petrol (Gasoline)
- Acceleration 0 - 100 km/h
- 7.5 s
- Acceleration 0 - 60 mph (calculated)
- 7.1 s
- Acceleration 0 - 200 km/h
- —
- Maximum speed
- 225 km/h140 mph
- Emission standard
- Euro 4
- Weight-to-power ratio
- 7.2 kg/Hp15.9 lb/Hp
- Weight-to-torque ratio
- 5.5 kg/Nm16.4 lb/lb-ft
Engine specs
- Power
- 177 Hp
- Power at
- 5800 rpm
- Power per litre
- 70.9
- Torque
- 230 Nm170 lb-ft
- Torque at
- 3500 - 5000 rpm
- Engine layout
- Front, longitudinal
- Engine model/code
- N52B25A
- Engine displacement
- 2497 cm³2497 cm³ (152 cu in)
- Number of cylinders
- 6
- Engine configuration
- Inline
- Cylinder bore
- 82 mm3.2 in
- Piston stroke
- 78.8 mm3.1 in
- Compression ratio
- 11 : 1
- Number of valves per cylinder
- 4
- Fuel injection system
- Multi-port manifold injection
- Engine aspiration
- Naturally aspirated engine
- Engine oil capacity
- 6.5 l1.7 gal
Space, volume and weights
- Kerb weight
- 1275 kg2811 lb
- Max. weight
- 1570 kg3461 lb
- Max load
- 295 kg650 lb
- Trunk (boot) space - minimum
- 240 l63.4 gal
- Trunk (boot) space - maximum
- 260 l68.7 gal
- Fuel tank capacity
- 55 l14.5 gal
Dimensions
- Length
- 4091 mm161.1 in
- Width
- 1781 mm70.1 in
- Height
- 1299 mm51.1 in
- Wheelbase
- 2495 mm98.2 in
- Front track
- 1473 mm58.0 in
- Rear (Back) track
- 1523 mm60.0 in
- Drag coefficient (Cd)
- 0.36
- Minimum turning circle
- 9.8 m32.2 ft
Drivetrain, brakes and suspension
- Drive wheel
- Rear-wheel drive
- Number of gears and type of gearbox
- 6 gears, automatic transmission
- Front suspension
- Independent, McPherson type with coil spring and anti-roll bar
- Rear suspension
- Coil spring
- Front brakes
- Disc
- Rear brakes
- Disc
- Assisting systems
- ABS (Anti-lock braking system)
- Tires size
- 225/50 R16
- Wheel rims size
- 7J x 16