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BMW Z4 3.0i Roadster

(2006 model)

Brief specs of 2006 BMW Z4 3.0i Roadster

2-door 2-seater convertible (cabriolet), petrol (gasoline) 6-cylinder straight (inline) engine, DOHC (double overhead camshafts, twin cam), 2979 cm3 / 181.8 cu in / 181.8 cu in, 170.0 kW / 228.0 hp / 228.0 hp @ 5900 rpm / 5900 rpm / 5900 rpm, 301.0 N·m / 222.0 lb·ft / 222.0 lb·ft @ 3500 rpm / 3500 rpm / 3500 rpm, rear wheel drive, 250 km/h / 155 mph / 155 mph top speed, consumption 9.1 l/100km / 31.0 mpg-UK / 25.8 mpg-US

units: metric UK US

Basic (general) data

Marque (make)BMWIssued from2006
ModelZ4 3.0i 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)260 l / 9.18 cu ft / 9.18 cu ft
Passenger space (volume)4130 l / 145.85 cu ft / 145.85 cu ftMax. cargo capacity (volume)1345 l / 47.50 cu ft / 47.50 cu ft

Dimensions & Weight

Length4100 mm / 161.4 in / 161.4 inTotal (curb) weight1365 kg / 3009 lb / 3009 lb
Width1790 mm / 70.5 in / 70.5 inDry weight
Height1310 mm / 51.6 in / 51.6 inLoad capacity225 kg / 496 lb / 496 lb
Wheelbase2500 mm / 98.4 in / 98.4 inGross (max.) weight1590 kg / 3505 lb / 3505 lb
Track frontTowing weight1400 kg / 3086 lb / 3086 lb
Track rearWeight distribution (front)
Ground clearance120 mm / 4.7 in / 4.7 inFuel 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 valves
Engine ManufacturerValves per cylinder
Engine constructionBore84.0 mm / 3.31 in / 3.31 in
Fuelpetrol (gasoline)Stroke89.6 mm / 3.53 in / 3.53 in
Fuel detailsunleaded 98Bore/Stroke ratio0.94
Fuel supplyInjectionEngine displacement2979 cm3 / 181.8 cu in / 181.8 cu in
Engine Main bearingsUnitary capacity496.54 cm3/cylinder / 30.301 cu in/cylinder / 30.301 cu in/cylinder
Cam DesignDOHC (double overhead camshafts, twin cam)Compression ratio
SumpwetMax. output power170.0 kW / 228.0 hp / 228.0 hp at 5900 rpm / 5900 rpm / 5900 rpm
AspirationMax. torque301.0 N·m / 222.0 lb·ft / 222.0 lb·ft at 3500 rpm / 3500 rpm / 3500 rpm
Compressor typeMaximum rpm
IntercoolerMax. net output (power at the wheels)68.0 kW / 91.2 hp / 91.2 hp (est.)
CoolantwaterSpecific output57.1 kW/l / 1.254 bhp/cu in / 1.254 bhp/cu in
Catalytic converterSpecific torque101.0 N·m/l / 0.88 lb·ft/cu in / 0.88 lb·ft/cu in

Transmission

Transmission typeNumber of gears
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 ratio169.2 kW/ton / 128.2 bhp/ton / 128.2 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)7.8 l/100km / 36.2 mpg-UK / 30.2 mpg-US
Acceleration 80-120 km/h (50-70 mph) in topFuel consumption, Mixed (combined)9.1 l/100km / 31.0 mpg-UK / 25.8 mpg-US
Standing ¼mile time Fuel consumption, Euro
Standing kilometer time CO2 emissions194 g/km / 312 g/mi / 312 g/mi
  Range604 km / 376 mi / 376 mi

Chassis

Engine locationfrontEngine alignmentlongitudinal
SteeringSteering details
Turns lock-to-lockTurning circle11.0 m / 36.1 ft / 36.1 ft
Suspension frontIndependentSuspension rearIndependent
Wheels frontWheels rear
Tyres frontTyres rear
Brakes frontventilated discBrakes rearventilated disc
Brake diameter frontBrake diameter rear
Brakes detailsABS (anti-lock braking system)Braked area

Technical specifications and performance data of BMW Z4 3.0i Roadster

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