Home » Car specs » BMW » 2004 BMW 645Ci Convertible Specs

2004 BMW 645Ci Convertible Specs

Engine Specifications

Engine Specifications:90 Degree V8
Position:Front Longitudinal
Valvetrain:4 Valves per Cyl
Displacement:4398 cc / 268.4 cu in
Bore:92 mm / 3.62 in
Stroke:82.7 mm / 3.26 in
Power:248.3 kw / 333 bhp @ 6100 rpm
Specific output:75.72 bhp per litre
Bhp/Weight:183.47 bhp per tonne
Torque:450.13 nm / 332 ft lbs @ 3600 rpm

Chassis & body

Body/Frame:Steel, Aluminum, SMC & Thermoplastic Monocoque
Driven wheels:RWD
Front tires:245/45 R 18 96W RSC
Rear tires:245/45 R 18 96W RSC
Front brakes:Discs w/Single Piston Calipers, ABS
Front brake size:348 mm / 13.7 in
Rear brakes:Discs w/Single Piston Calipers
Rear brake size:345 mm / 13.6 in
Front wheels:F 45.7 x 20.3 cm / 18 x 8 in
Rear wheels:R 45.7 x 20.3 cm / 18 x 8 in
Steering:Rack & Pinion w/Power Steering
Front suspension:MacPherson Struts w/Control Arms
Rear suspension:Rigid Axle


Transmission:6-Speed ZF Manual or SMG 6-Speed
Gear ratios:4.055:1, 2.396:1, 1.5:1, 1.192:1, 1.00:1, 0.872:1
Final drive:3.23:1

Car dimensions

Weight:1815 kg / 4001 lbs
Wheelbase:2780 mm / 109.4 in
Front track:1558 mm / 61.3 in
Rear track:1592 mm / 62.7 in
Length:4820 mm / 189.8 in
Width:1855 mm / 73.0 in
Height:1373 mm / 54.1 in

Speed performance

Car top speed:250 kph / 155.3 mph
0 - 60 mph:6.1 seconds

Related car specs

  • 2000 BMW Z9 Convertible Concept

    Engine: V8
    Power: 213.3 kw / 286.0 bhp
    Torque: 440 nm / 324.5 ft lbs

  • 1978 BMW 320 Turbo Group 5

    Engine: Inline-4
    Power: 447.4 kw / 600.0 bhp
    Torque: N/A

  • 2004 BMW Concept M5

    Engine: V10
    Power: 372.9 kw / 500 bhp
    Torque: 500 nm / 368.8 ft lbs

  • 1999 BMW M Coupe

    Engine: Inline-6
    Power: 178.9 kw / 239.9 bhp @ 6000 rpm
    Torque: 319.9 nm / 235.9 ft lbs @ 3800 rpm

  • 2006 BMW Z4 M Coupe

    Engine: Cast Iron Block, Water Cooled, S54 Inline-6
    Power: 255.8 kw / 343 bhp @ 7900 rpm
    Torque: 494.87 nm / 365 ft lbs @ 4900 rpm

  • Email
  • YouTube
  • RSS
  • Twitter
  • facebook
  • feedburner

Latest Specs

  1. 2010 Ford Mustang

    Engine: V8, Power: 315 hp @ 6000 rpm, Torque: 325 lb-ft @ 4250 rpm
  2. 2009 Nissan 370Z

    Engine: VQ37VHR Variable Valve Timing NA V6, Power: 332 bhp @ 7000 rpm, Torque: 270 lb-ft. @ 5200 rpm
  3. 2010 Bentley Azure T

    Engine: Twin Turbocharged V8, Power: 500 bhp / 507 PS / 373 kW @ 4,200 rpm, Torque: 738 lb ft / 1,000 Nm @ 3,200 rpm
  4. 2009 Porsche Cayman

    Engine: 6 Cylinder Horizontally Opposed "Boxer", Power: 320 bhpN/A
  5. 2006 YES Roadster 3.2 Turbo

    Engine: V6, Power: 355 bhp (261 kW), Torque: 358 lb-ft (485 Nm)

New Vehicles

Hyundai i30 N Line starts at £21,255 in UKHyundai i30 N Line starts at £21,255 in UK
After a long wait, Hyundai is finally making the most of its new N Performance division. The South-Korean manufacturer has officially announced the pricing ...

Concept Cars

BMW Vision M Next shows us the future of the M modelsBMW Vision M Next shows us the future of the M models
BMW unveiled the all-new Vision M Next concept car. Developed as a preview for the upcoming M models, the new prototype was showcased during the #NEXTGen ...

Custom Cars

ABT Cupra Ateca offers more powerABT Cupra Ateca offers more power
Just introduced on the market during this fall, the new Cupra Ateca already benefits from a tuning package created by a german tuner. It is well known ...

Future Cars

Bentley to unveil a special model this JulyBentley to unveil a special model this July
Bentley is celebrating with style its 100th anniversary. Not only it will take by storm the Goodwood Festival of Speed, but also reveal the future of ...

Market News

Volkswagen I.D R set a new record on Pikes Peak Hill ClimbVolkswagen I.D R set a new record on Pikes Peak Hill Climb
After a long teasing campaign and intense preparations, Volkswagen managed to score an impressive time on the Pikes Peak hill climb. The electric supercar ...


Volvo and Uber launch their self-driving carVolvo and Uber launch their self-driving car
Volvo is one step ahead when it comes to self-driving cars. The most recent announcement demonstrates this. Together with Uber, the leading ride-hailing ...

Various News

Rumors: BMW iX3 might have rear-wheel driveRumors: BMW iX3 might have rear-wheel drive
As you already know, BMW is working on a full electric version of the X3. It will be called iX3 and it will be unveiled in a few months. ...


Mercedes-AMG GT3 unveiled with some updatesMercedes-AMG GT3 unveiled with some updates
A few months ago, Mercedes unveiled the revised Mercedes-AMG coupe model. Now, the racing division has prepared some updates for the current version. ...


Enjoy the sound of the new Porsche 911 GT3Enjoy the sound of the new Porsche 911 GT3
The new generation Porsche 911 was launched at the end of last year, but customers can order only two versions Carrera S and Carrera 4S. ...