Motor Matchup logo
Motor Matchup logo

2004 BMW 645 CI 2DR Convertible

Ci 2dr Convertible

$76,300 MSRP
4.4l V-8
0-60 mph • 1/4 mile
5.5 sec

0-60 mph

14 sec

@ 101 mph

Horsepower • Torque
325 hp

Power

330 lb-ft

Torque

Curb weight
4,178 lbs

Rear-wheel Drive

Image coming soon

We are still sourcing visuals for this trim.

Overview

Vehicle Details

Year:

2004

Make:

BMW

Model:

645

Trim:

CI 2DR Convertible

Style:

Ci 2dr Convertible

Base Price:

$76,300

Drive:

Rear-wheel Drive

Dimensions & Weight

Curb Weight:

4,178 lbs

Length:

190.2 in.

Width:

73 in.

Height:

54.1 in.

Wheelbase:

109.4 in.

Drag Coefficient:

0.32

MPG:

15 city / 23 hwy

Fuel:

18.5 gal. / 352 mi range

Engine & Powertrain

Horsepower:

325 hp @ 6,100 rpm

Torque:

330 ft-lbs @ 3,600 rpm

Engine:

4.4l V-8

Displacement:

4.4 liters

Compression Ratio:

10.50 to 1

Valves:

32

Engine Config:

Standard

Redline:

6,900 rpm

Dyno Chart

Power vs torque across the rev range

Performance

All times derived from MotorMatchup simulation using street surface.

Acceleration

0-60 mph (1ft):

5.48 sec

0-60 mph:

5.81 sec

0-100 mph:

13.84 sec

60-130 mph:

19.45 sec

100-150 mph:

27.18 sec

Top Speed:

165 mph

Distance

⅛ mile:

9.12 sec @ 78.7 mph

¼ mile:

14.03 sec @ 101.2 mph

½ mile:

22 sec @ 123.1 mph

1 mile:

35.28 sec @ 144 mph

Drivetrain

Front Tires:

P245/45ZR18

Rear Tires:

P245/45ZR18

Tire Compound:

Run Flat All-seasons

Transmission:

6-speed Automatic

Final Drive:

3.23

Gear Ratios

1: 4.06

2: 2.4

3: 1.58

4: 1.19

5: 1

6: 0.87

R: 3.77

Speed vs RPM

Gear spacing and speed bands

See incorrect or missing data?

Help us keep the catalog accurate for every trim.

Motor Matchup logo
© Copyright 2026 MotorMatchup. All rights reserved.
Enthusiast Driven
Motor Matchup logo
Enthusiast Driven
© Copyright 2026 MotorMatchup. All rights reserved.