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BMW Z4 3.0si Roadster

(2008 model)

Brief specs of 2008 BMW Z4 3.0si Roadster

2-door 2-seater convertible (cabriolet), petrol (gasoline) 6-cylinder 24-valve straight (inline) engine, DOHC (double overhead camshafts, twin cam), 2996 cm3 / 182.8 cu in / 182.8 cu in, 190.0 kW / 254.8 hp / 254.8 hp @ 6600 rpm / 6600 rpm / 6600 rpm, 299.3 N·m / 220.8 lb·ft / 220.8 lb·ft @ 2750 rpm / 2750 rpm / 2750 rpm, manual 6-speed transmission, rear wheel drive, 250 km/h / 155 mph / 155 mph top speed, consumption 8.6 l/100km / 32.8 mpg-UK / 27.4 mpg-US

units: metric UK US

Basic (general) data

Marque (make)BMWIssued from2008
ModelZ4 3.0si RoadsterIssued until
SerieZ4Number made
Model familyBody construction
Model codeBody designation
ManufacturerBMWCountryDE,ZA

Bodywork

Base platformNumber of doors2
Bodywork typeconvertible (cabriolet)Number of seats2
Bodywork designerCargo capacity (volume)240 l / 8.48 cu ft / 8.48 cu ft
Passenger space (volume)2803 l / 98.99 cu ft / 98.99 cu ftMax. cargo capacity (volume)1150 l / 40.61 cu ft / 40.61 cu ft

Dimensions & Weight

Length4100 mm / 161.4 in / 161.4 inTotal (curb) weight1385 kg / 3053 lb / 3053 lb
Width1310 mm / 51.6 in / 51.6 inDry weight
Height1790 mm / 70.5 in / 70.5 inLoad capacity15 kg / 33 lb / 33 lb
Wheelbase2500 mm / 98.4 in / 98.4 inGross (max.) weight1400 kg / 3086 lb / 3086 lb
Track frontTowing weight1200 kg / 2646 lb / 2646 lb
Track rearWeight distribution (front)
Ground clearanceFuel capacity55 l / 12.1 UK gal / 14.5 US gal
Length/wheelbase ratio1.64  

Aerodynamics

Drag coefficient (Cd, Cx, Cw)0.3Frontal area (A)1.99 m2 / 21.5 sq ft / 21.5 sq ft (est.)
Aerodynamic coefficient (Cd×A)0.60 m2 / 6.4 sq ft / 6.4 sq ft (est.)Aerodynamic resistance (Aero horse power) at 100 km/h (62 mph)14.9 kW / 19.9 hp / 19.9 hp (est.)

Engine

Engine CodeTotal number of cylinders6
Engine Typestraight (inline) (Inline, 6 cylinder)Total number of valves24
Engine ManufacturerValves per cylinder4
Engine constructionBore88.0 mm / 3.46 in / 3.46 in
Fuelpetrol (gasoline)Stroke85.0 mm / 3.35 in / 3.35 in
Fuel detailsBore/Stroke ratio1.04
Fuel supplyInjectionEngine displacement2996 cm3 / 182.8 cu in / 182.8 cu in
Engine Main bearingsUnitary capacity516.98 cm3/cylinder / 31.548 cu in/cylinder / 31.548 cu in/cylinder
Cam DesignDOHC (double overhead camshafts, twin cam)Compression ratio
SumpwetMax. output power190.0 kW / 254.8 hp / 254.8 hp at 6600 rpm / 6600 rpm / 6600 rpm
AspirationMax. torque299.3 N·m / 220.8 lb·ft / 220.8 lb·ft at 2750 rpm / 2750 rpm / 2750 rpm
Compressor typeMaximum rpm
IntercoolerMax. net output (power at the wheels)76.0 kW / 101.9 hp / 101.9 hp (est.)
CoolantwaterSpecific output63.4 kW/l / 1.394 bhp/cu in / 1.394 bhp/cu in
Catalytic converterSpecific torque99.9 N·m/l / 0.87 lb·ft/cu in / 0.87 lb·ft/cu in

Transmission

Transmission typemanualNumber of gears6
Wheel driverear wheel driveTop gear (drive) ratio
  Final gear (drive) ratio

Performance

Acceleration 0-50 mph (80 km/h)Top (maximal) speed250 km/h / 155 mph / 155 mph
Acceleration 0-60 mph (97 km/h)Power-to-weight ratio187.0 kW/ton / 141.7 bhp/ton / 141.7 bhp/ton
Acceleration 0-100 km/hFuel consumption, City (urban)11.8 l/100km / 23.9 mpg-UK / 19.9 mpg-US
Acceleration 0-100 mph (160 km/h)Fuel consumption, Road (extra-urban)8.4 l/100km / 33.6 mpg-UK / 28.0 mpg-US
Acceleration 80-120 km/h (50-70 mph) in topFuel consumption, Mixed (combined)8.6 l/100km / 32.8 mpg-UK / 27.4 mpg-US
Standing ¼mile time Fuel consumption, Euro
Standing kilometer time CO2 emissions194 g/km / 312 g/mi / 312 g/mi
  Range640 km / 397 mi / 397 mi

Chassis

Engine locationfrontEngine alignmentlongitudinal
SteeringSteering details
Turns lock-to-lockTurning circle11.0 m / 36.1 ft / 36.1 ft
Suspension frontIndependentSuspension rear
Wheels frontWheels rear
Tyres frontTyres rear
Brakes frontventilated discBrakes rearventilated disc
Brake diameter frontBrake diameter rear
Brakes detailsABS (anti-lock braking system), EBD (electronic brake-force distribution), ASC (automatic stabilisation control)Braked area

Technical specifications and performance data of BMW Z4 3.0si Roadster

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