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

2004 BMW 645Ci Convertible Specs

Engine Specifications

Engine Specifications:90 Degree V8
Position:Front Longitudinal
Aspiration:Natural
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
Compression:10.0:1
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

Drivetrain

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

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