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BMW 645Ci Convertible

(2006 model)

Brief specs of 2006 BMW 645Ci Convertible

2-door 4-seater convertible (cabriolet), petrol (gasoline) 8-cylinder 16-valve V engine, DOHC (double overhead camshafts, twin cam), 4398 cm3 / 268.4 cu in / 268.4 cu in, 245.0 kW / 328.6 hp / 328.6 hp @ 6100 rpm / 6100 rpm / 6100 rpm, 450.0 N·m / 331.9 lb·ft / 331.9 lb·ft @ 3600 rpm / 3600 rpm / 3600 rpm, manual 6-speed transmission, rear wheel drive, 250 km/h / 155 mph / 155 mph top speed, consumption 12.8 l/100km / 22.1 mpg-UK / 18.4 mpg-US

units: metric UK US

Basic (general) data

Marque (make)BMWIssued from2006
Model645Ci ConvertibleIssued until
Serie6Number made
Model familyBody construction
Model codeBody designation
ManufacturerBMWCountryDE,ZA

Bodywork

Base platformNumber of doors2
Bodywork typeconvertible (cabriolet)Number of seats4
Bodywork designerCargo capacity (volume)
Passenger space (volume)5010 l / 176.93 cu ft / 176.93 cu ftMax. cargo capacity (volume)1100 l / 38.85 cu ft / 38.85 cu ft

Dimensions & Weight

Length4830 mm / 190.2 in / 190.2 inTotal (curb) weight1836 kg / 4048 lb / 4048 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 weight2004 kg / 4418 lb / 4418 lb
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)0.3Frontal area (A)2.18 m2 / 23.5 sq ft / 23.5 sq ft (est.)
Aerodynamic coefficient (Cd×A)0.65 m2 / 7.0 sq ft / 7.0 sq ft (est.)Aerodynamic resistance (Aero horse power) at 100 km/h (62 mph)16.3 kW / 21.8 hp / 21.8 hp (est.)

Engine

Engine CodeTotal number of cylinders8
Engine TypeV engine (V8)Total number of valves16
Engine ManufacturerValves per cylinder2
Engine constructionBore92.0 mm / 3.62 in / 3.62 in
Fuelpetrol (gasoline)Stroke83.0 mm / 3.27 in / 3.27 in
Fuel detailsBore/Stroke ratio1.11
Fuel supplyInjectionEngine displacement4398 cm3 / 268.4 cu in / 268.4 cu in
Engine Main bearingsUnitary capacity551.75 cm3/cylinder / 33.670 cu in/cylinder / 33.670 cu in/cylinder
Cam DesignDOHC (double overhead camshafts, twin cam)Compression ratio10.0 : 1
SumpwetMax. output power245.0 kW / 328.6 hp / 328.6 hp at 6100 rpm / 6100 rpm / 6100 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)98.0 kW / 131.4 hp / 131.4 hp (est.)
CoolantwaterSpecific output55.7 kW/l / 1.224 bhp/cu in / 1.224 bhp/cu in
Catalytic converterSpecific torque102.3 N·m/l / 0.90 lb·ft/cu in / 0.90 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 ratio181.5 kW/ton / 137.5 bhp/ton / 137.5 bhp/ton
Acceleration 0-100 km/hFuel consumption, City (urban)
Acceleration 0-100 mph (160 km/h)Fuel consumption, Road (extra-urban)
Acceleration 80-120 km/h (50-70 mph) in topFuel consumption, Mixed (combined)12.8 l/100km / 22.1 mpg-UK / 18.4 mpg-US
Standing ¼mile time Fuel consumption, Euro
Standing kilometer time CO2 emissions276 g/km / 444 g/mi / 444 g/mi
  Range547 km / 340 mi / 340 mi

Chassis

Engine locationfrontEngine alignmentlongitudinal
SteeringSteering detailsPower assisted steering.
Turns lock-to-lockTurning circle12.0 m / 39.4 ft / 39.4 ft
Suspension frontSuspension rear
Wheels frontWheels rear
Tyres front245/45R18Tyres rear245/45R18
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 645Ci Convertible

Infobox

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This is the law that says you have to prove that you are financially able to pay for anything you may be responsible for while driving your car. The easiest way of showing this is by having car insurance and that is what the majority of people do to comply with this law. Some states to have other ways that one can show financial responsibility such as giving a large cash deposit for the DMV.

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