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BMW Z4 2.5si

(2005 model)

Brief specs of 2005 BMW Z4 2.5si

2-door 2-seater drophead coupé (convertible coupé), petrol (gasoline) 6-cylinder 24-valve straight (inline) engine, DOHC (double overhead camshafts, twin cam), 2497 cm3 / 152.4 cu in / 152.4 cu in, 160.3 kW / 215.0 hp / 215.0 hp @ 6500 rpm / 6500 rpm / 6500 rpm, 250.0 N·m / 184.4 lb·ft / 184.4 lb·ft @ 2750 rpm / 2750 rpm / 2750 rpm, manual 6-speed transmission, rear wheel drive, 240 km/h / 149 mph / 149 mph top speed, consumption 8.4 l/100km / 33.6 mpg-UK / 28.0 mpg-US

units: metric UK US

Basic (general) data

Marque (make)BMWIssued from2005
ModelZ4 2.5siIssued until
SerieZ4Number made
Model familyBody construction
Model codeBody designation
ManufacturerBMWCountryDE,ZA

Bodywork

Base platformNumber of doors2
Bodywork typedrophead coupé (convertible coupé)Number of seats2
Bodywork designerCargo capacity (volume)
Passenger space (volume)Max. cargo capacity (volume)

Dimensions & Weight

Length4091 mm / 161.1 in / 161.1 inTotal (curb) weight1360 kg / 2998 lb / 2998 lb
Width1781 mm / 70.1 in / 70.1 inDry weight
Height1299 mm / 51.1 in / 51.1 inLoad capacity
Wheelbase2495 mm / 98.2 in / 98.2 inGross (max.) weight
Track front1473 mm / 58.0 in / 58.0 inTowing weight
Track rear1523 mm / 60.0 in / 60.0 inWeight distribution (front)
Ground clearanceFuel capacity55 l / 12.1 UK gal / 14.5 US gal
Length/wheelbase ratio1.64  

Aerodynamics

Drag coefficient (Cd, Cx, Cw)0.36Frontal area (A)1.91 m2 / 20.6 sq ft / 20.6 sq ft
Aerodynamic coefficient (Cd×A)0.69 m2 / 7.4 sq ft / 7.4 sq ftAerodynamic resistance (Aero horse power) at 100 km/h (62 mph)17.1 kW / 23.0 hp / 23.0 hp

Engine

Engine CodeTotal number of cylinders6
Engine Typestraight (inline) Total number of valves24
Engine ManufacturerBMWValves per cylinder4
Engine constructionBore82.0 mm / 3.23 in / 3.23 in
Fuelpetrol (gasoline)Stroke78.8 mm / 3.10 in / 3.10 in
Fuel detailsBore/Stroke ratio1.04
Fuel supplyEngine displacement2497 cm3 / 152.4 cu in / 152.4 cu in
Engine Main bearingsUnitary capacity416.17 cm3/cylinder / 25.396 cu in/cylinder / 25.396 cu in/cylinder
Cam DesignDOHC (double overhead camshafts, twin cam)Compression ratio11.0 : 1
SumpwetMax. output power160.3 kW / 215.0 hp / 215.0 hp at 6500 rpm / 6500 rpm / 6500 rpm
AspirationnaturalMax. torque250.0 N·m / 184.4 lb·ft / 184.4 lb·ft at 2750 rpm / 2750 rpm / 2750 rpm
Compressor typeN/AMaximum rpm
IntercoolernoMax. net output (power at the wheels)89.8 kW / 120.4 hp / 120.4 hp (est.)
CoolantwaterSpecific output64.2 kW/l / 1.411 bhp/cu in / 1.411 bhp/cu in
Catalytic converteryesSpecific torque100.1 N·m/l / 0.88 lb·ft/cu in / 0.88 lb·ft/cu in

Transmission

Transmission typemanualNumber of gears6
Wheel driverear wheel driveTop gear (drive) ratio0.85
  Final gear (drive) ratio3.38

Performance

Acceleration 0-50 mph (80 km/h)Top (maximal) speed240 km/h / 149 mph / 149 mph
Acceleration 0-60 mph (97 km/h)Power-to-weight ratio158.1 kW/ton / 119.8 bhp/ton / 119.8 bhp/ton
Acceleration 0-100 km/h6.50 s / 6.50 s / 6.50 sFuel consumption, City (urban)12.0 l/100km / 23.5 mpg-UK / 19.6 mpg-US
Acceleration 0-100 mph (160 km/h)Fuel consumption, Road (extra-urban)6.3 l/100km / 44.8 mpg-UK / 37.3 mpg-US
Acceleration 80-120 km/h (50-70 mph) in topFuel consumption, Mixed (combined)8.4 l/100km / 33.6 mpg-UK / 28.0 mpg-US
Standing ¼mile time Fuel consumption, Euro
Standing kilometer time CO2 emissions202 g/km / 325 g/mi / 325 g/mi
  Range655 km / 407 mi / 407 mi

Chassis

Engine locationfrontEngine alignmentlongitudinal
SteeringSteering details
Turns lock-to-lockTurning circle
Suspension frontSuspension rear
Wheels front7J x 16Wheels rear7J x 16
Tyres front225/55 R 16 92VTyres rear225/55 R 16 92V
Brakes frontventilated discBrakes rearventilated disc
Brake diameter front300 mm / 11.8 in / 11.8 inBrake diameter rear294 mm / 11.6 in / 11.6 in
Brakes detailsservo-assisted, ABS (anti-lock braking system)Braked area

Technical specifications and performance data of BMW Z4 2.5si

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