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BMW 645 Ci Automatic

(2003 model)

Brief specs of 2003 BMW 645 Ci Automatic

2-door 4-seater coupé, 8-cylinder 32-valve V engine, 4398 cm3 / 268.4 cu in / 268.4 cu in, 231.0 kW / 309.8 hp / 309.8 hp @ 6000 rpm / 6000 rpm / 6000 rpm, 450.0 N·m / 331.9 lb·ft / 331.9 lb·ft @ 3600 rpm / 3600 rpm / 3600 rpm, automatic 6-speed transmission, rear wheel drive, 250 km/h / 155 mph / 155 mph top speed, consumption 10.9 l/100km / 25.9 mpg-UK / 21.6 mpg-US

units: metric UK US

Basic (general) data

Marque (make)BMWIssued from2003
Model645 Ci AutomaticIssued until
Serie6Number made
Model familyBody construction
Model codeBody designation
ManufacturerBMWCountryDE

Bodywork

Base platformNumber of doors2
Bodywork typecoupéNumber of seats4
Bodywork designerCargo capacity (volume)350 l / 12.36 cu ft / 12.36 cu ft
Passenger space (volume)5010 l / 176.93 cu ft / 176.93 cu ftMax. cargo capacity (volume)

Dimensions & Weight

Length4830 mm / 190.2 in / 190.2 inTotal (curb) weight1698 kg / 3743 lb / 3743 lb
Width1860 mm / 73.2 in / 73.2 inDry weight
Height1380 mm / 54.3 in / 54.3 inLoad capacity
Wheelbase2790 mm / 109.8 in / 109.8 inGross (max.) weight
Track frontTowing weight
Track rearWeight distribution (front)
Ground clearanceFuel capacity70 l / 15.4 UK gal / 18.5 US gal
Length/wheelbase ratio1.73  

Aerodynamics

Drag coefficient (Cd, Cx, Cw)Frontal area (A)2.18 m2 / 23.5 sq ft / 23.5 sq ft (est.)
Aerodynamic coefficient (Cd×A)Aerodynamic resistance (Aero horse power) at 100 km/h (62 mph)

Engine

Engine CodeTotal number of cylinders8
Engine TypeV engine (V8)Total number of valves32
Engine ManufacturerValves per cylinder4
Engine constructionBore92.0 mm / 3.62 in / 3.62 in
FuelStroke82.7 mm / 3.26 in / 3.26 in
Fuel detailsBore/Stroke ratio1.11
Fuel supplyInjectionEngine displacement4398 cm3 / 268.4 cu in / 268.4 cu in
Engine Main bearingsUnitary capacity549.76 cm3/cylinder / 33.548 cu in/cylinder / 33.548 cu in/cylinder
Cam DesignCompression ratio10.5 : 1
SumpwetMax. output power231.0 kW / 309.8 hp / 309.8 hp at 6000 rpm / 6000 rpm / 6000 rpm
AspirationMax. torque450.0 N·m / 331.9 lb·ft / 331.9 lb·ft at 3600 rpm / 3600 rpm / 3600 rpm
Compressor typeMaximum rpm
IntercoolerMax. net output (power at the wheels)40.2 kW / 53.9 hp / 53.9 hp (est.)
CoolantwaterSpecific output52.5 kW/l / 1.154 bhp/cu in / 1.154 bhp/cu in
Catalytic converterSpecific torque102.3 N·m/l / 0.90 lb·ft/cu in / 0.90 lb·ft/cu in

Transmission

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

Performance

Acceleration 0-50 mph (80 km/h)4.20 s / 4.20 s / 4.20 sTop (maximal) speed250 km/h / 155 mph / 155 mph
Acceleration 0-60 mph (97 km/h)Power-to-weight ratio185.3 kW/ton / 140.4 bhp/ton / 140.4 bhp/ton
Acceleration 0-100 km/hFuel consumption, City (urban)16.1 l/100km / 17.5 mpg-UK / 14.6 mpg-US
Acceleration 0-100 mph (160 km/h)Fuel consumption, Road (extra-urban)8.0 l/100km / 35.3 mpg-UK / 29.4 mpg-US
Acceleration 80-120 km/h (50-70 mph) in topFuel consumption, Mixed (combined)10.9 l/100km / 25.9 mpg-UK / 21.6 mpg-US
Standing ¼mile time Fuel consumption, Euro
Standing kilometer time CO2 emissions264 g/km / 425 g/mi / 425 g/mi
  Range642 km / 399 mi / 399 mi

Chassis

Engine locationfrontEngine alignmentlongitudinal
SteeringSteering details
Turns lock-to-lockTurning circle11.0 m / 36.1 ft / 36.1 ft
Suspension frontSuspension rear
Wheels frontWheels rear
Tyres front245/45R1896-Tyres rear225/60-R17
Brakes frontBrakes rear
Brake diameter front348 mm / 13.7 in / 13.7 inBrake diameter rear345 mm / 13.6 in / 13.6 in
Brakes detailsABS (anti-lock braking system)Braked area

Technical specifications and performance data of BMW 645 Ci Automatic

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