2004 BMW 6 Series Review

Price Estimate: $3,146 - $4,749

2004 BMW 645Ci 2dr Coupe, European Model Shown

+54

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Price & Payment

14 cars

$10,829 avg. price

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Appraise My 2004 BMW 6 Series

BMW 6 Series model years

BMW 6 Series for Sale

BMW 6 Series types

Coupe
Convertible

Edmunds' Expert Review

by the Edmunds Experts

Pros

Nimble handling for a big coupe, endless power from ultrasmooth V8, elegant interior design.

Cons

iDrive controller is improved but still a nuisance, only one engine option.

What’s new

The 6 Series coupe is back after a 14-year hiatus from the BMW lineup. With eight-cylinder power and all the latest technology, it has the necessary ingredients to take on the world's finest luxury two-doors.

Edmunds says

A phenomenal work of automotive engineering, but its shape fails to elicit universal enthusiasm.

Continue reading Edmunds Expert Rating below

For sale nearby

14 listings

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2004 BMW 6 Series
645Ci Convertible
$9,999
fair price
$205 above market
- 84,000 miles
- 1 accident, 2 owners, personal use only
- 8cyl automatic
- Gem Motors (97 mi away)
- Bluetooth
- Navigation
- Leather Seats
- Upgraded Headlights
- Power Driver Seat
Close
Located in Saint Louis, MO
Vin Number: WBAEK73474B322164 For sale 645 Convertible Great condition Everything work perfectly fine Very clean in and out Runs excellent Brand new t...
AutoCheck Vehicle History Summary
Accident Free Vehicle: No
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
16 Combined MPG (13 City/21 Highway)
Listing Information:
VIN: WBAEK73474B322164
Stock: 322164
Certified Pre-Owned: No
Listed since: 02-26-2025
Price Drop
2004 BMW 6 Series
645Ci Convertible
$12,000
- 70,198 miles
- 1 accident, 2 owners, personal use only
- 8cyl manual
- Napleton's Valley Hyundai (183 mi away)
- Bluetooth
- Navigation
- Leather Seats
- Upgraded Headlights
- Power Driver Seat
Close
Located in Aurora, IL
2004 BMW 6 Series 645Ci, Navigation System, 18" x 8" Radial Spoke Cast Alloy Wheels, 4-Wheel Disc Brakes, 8 Speakers, ABS brakes, Air Conditioning, Al...
AutoCheck Vehicle History Summary
Accident Free Vehicle: No
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
16 Combined MPG (13 City/21 Highway)
Listing Information:
VIN: WBAEK73444B321473
Stock: P17241A
Certified Pre-Owned: No
Listed since: 01-20-2025

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Cost to Drive^{Cost to drive estimates for the 2004 BMW 6 Series 645Ci 2dr Coupe (4.4L 8cyl 6M) and comparison vehicles are based on 15,000 miles per year (with a mix of 55% city and 45% highway driving) and energy estimates of $4.36 per gallon for premium unleaded in Illinois.}

Monthly estimates based on costs in Illinois

$293/mo

$170/mo

Avg. Midsize Car

Calculate my fuel costs

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BMW 6 Series Reviews

Owner Reviews

4.8

65 reviews

5(86%)

4(12%)

3(2%)

2(0%)

1(0%)

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Most Helpful Owner Reviews

Love my Bimmer - But I'm a hands-on owner

Ken Allewelt, 10/06/2016

2004 BMW 6 Series 645Ci 2dr Convertible (4.4L 8cyl 6M)

Unless you have deep (very deep) pockets, or are comfortable doing routine maintenance on a high-tech vehicle, the 645ci probably isn't your best choice unless you're able to purchase an extended warranty. I drove a 1984 633csi for about 20 years -- thoroughly loved the car. When work required more travel, I upgraded to the 2004 645ci. I was able to pick one up a 2-owner with 85,000 …

Too much fun in the sun

NC6Driver, 05/05/2009

2004 BMW 6 Series 645Ci 2dr Convertible (4.4L 8cyl 6M)

This car is not the best in any category, there are better looking, faster, cheaper, whatever the category. But as a package, this car is the one to take out on a winding road on a Saturday afternoon. Or you can just drop the top and actually enjoy your drive to work, as I do. It has all the power you need to be pushing well to the right side of 100 by the end of the average on ramp. …

Fun But ...

David, 06/05/2006

2004 BMW 6 Series 645Ci 2dr Convertible (4.4L 8cyl 6M)

This is a magnificent car, providing more niche-fillers than any other car on the market: a true sports car, with excellent speed and handling, top luxury, eye-catching look, available with a stick, and a back seat and trunk that are actually useful. However, the alloy wheels are so soft I'm on my my third set, and despite their advertising, BMW will do anything to avoid having the …

Will drive this car for 10 years.

new645cicdriver, 09/11/2004

2004 BMW 6 Series 645Ci 2dr Convertible (4.4L 8cyl 6M)

What I think is best about this car is how well it operates in the two roles of luxury cruiser and sports car convertible. Overall it is exceptionally self assured and holds the road with tenancity. The low grumble from the v-8 sounds great. As a luxury car it compares to anything out there. But put the top down, select the sport setting on the transmission and you …

See all 65 reviews of the BMW 6 Series

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2004 6 Series Highlights

Type:

Coupe

Base MSRP Excludes Destination Fee	$69,300
Engine Type	Gas
Combined MPG	18 MPG
Cost to Drive	$293/month
Seating	4 seats
Cargo Capacity All Seats In Place	13.0 cu.ft.
Drivetrain	rear wheel drive
Warranty	4 years / 50,000 miles

See all features & specs

Safety

Key safety features on the 6 Series include:

Alarm
Tire Pressure Warning
Stability Control

IIHS Rating

The Insurance Institute of Highway Safety uses extensive crash tests to determine car safety.

Small Overlap Front Driver-Side Test
Not Tested
Small Overlap Front Passenger-Side Test
Not Tested
Moderate Overlap Front Test – Original
Not Tested
Moderate Overlap Front Test – Updated
Not Tested
Side Impact Test – Original
Not Tested
Side Impact Test – Updated
Not Tested
Roof Strength Test
Not Tested
Rear Crash Protection / Head Restraint
Acceptable

2004 BMW 6 Series Review

Price & Payment

Edmunds' Expert Review

Pros

Cons

What’s new

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For sale nearby

2004 BMW 6 Series
645Ci Convertible

AutoCheck Vehicle History Summary

2004 BMW 6 Series
645Ci Convertible

AutoCheck Vehicle History Summary

Cost to Drive^{Cost to drive estimates for the 2004 BMW 6 Series 645Ci 2dr Coupe (4.4L 8cyl 6M) and comparison vehicles are based on 15,000 miles per year (with a mix of 55% city and 45% highway driving) and energy estimates of $4.36 per gallon for premium unleaded in Illinois.}

BMW 6 Series Reviews

Owner Reviews

Most Helpful Owner Reviews

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Will drive this car for 10 years.

2004 6 Series Highlights

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2004 BMW 6 Series Review

Price & Payment

Edmunds' Expert Review

Pros

Cons

What’s new

Edmunds says

For sale nearby

2004 BMW 6 Series645Ci Convertible

AutoCheck Vehicle History Summary

2004 BMW 6 Series645Ci Convertible

AutoCheck Vehicle History Summary

Cost to DriveCost to drive estimates for the 2004 BMW 6 Series 645Ci 2dr Coupe (4.4L 8cyl 6M) and comparison vehicles are based on 15,000 miles per year (with a mix of 55% city and 45% highway driving) and energy estimates of $4.36 per gallon for premium unleaded in Illinois.

BMW 6 Series Reviews

Owner Reviews

Most Helpful Owner Reviews

Love my Bimmer - But I'm a hands-on owner

Too much fun in the sun

Fun But ...

Will drive this car for 10 years.

2004 6 Series Highlights

Safety

Related Used 2004 BMW 6 Series info

Vehicle reviews of used models

Shop used vehicles in your area

Popular new car reviews and ratings

Research other models of

Other models

Join Edmunds

2004 BMW 6 Series
645Ci Convertible

2004 BMW 6 Series
645Ci Convertible

Cost to Drive^{Cost to drive estimates for the 2004 BMW 6 Series 645Ci 2dr Coupe (4.4L 8cyl 6M) and comparison vehicles are based on 15,000 miles per year (with a mix of 55% city and 45% highway driving) and energy estimates of $4.36 per gallon for premium unleaded in Illinois.}