Used 2015 BMW 6 Series 640i Convertible 2D

Pricing
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Values and Prices

Fair Purchase Price is determined by collecting thousands of actual consumer vehicle purchase prices, plus data from national vehicle registration databases and several other reliable third-party sources.
Estimated Values
Condition | Trade-In Value | Private Party Value | ||
|---|---|---|---|---|
Excellent | $13,060 | $15,050 | ||
Very Good | $12,460 | $14,400 | ||
Good | $11,810 | $13,650 | ||
Fair | $10,160 | $11,800 |
Estimated Trade-In Values for the 2015 BMW 6 Series 640i Convertible 2D range from about $10,160 to $13,060 depending on vehicle condition. Estimated Private Party Values range from about $11,800 to $15,050 depending on vehicle condition. Valid for ZIP Code 43085 through 9/16/2026.
2015 BMW 6 Series 640i Convertible 2D Depreciation
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2015 BMW 6 Series 640i Convertible 2D Annual Depreciation
Year | Vehicle Depreciation* | Resale Value | Trade-In Value | ||
|---|---|---|---|---|---|
2023 | $9,468 | $20,071 | $16,311 | ||
2024 | $1,711 | $18,360 | $14,491 | ||
2025 | $2,573 | $15,787 | $11,911 | ||
Now | $1,587 | $14,200 | $12,250 |
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2-Year Forecasted Depreciation
*Depreciation for the last 12 months of the private party resale value.
2015 BMW 6 Series 640i Convertible 2D Depreciation
Annual Depreciation is an estimation of what your vehicle's value might be over time based on an average of similar vehicles. Estimations are calculated by comparing Kelley Blue Book Private Party Values of vehicles similar to yours over time, as well as forecasts from Manheim Auction data comparing current and projected auction values against current Kelley Blue Book Private Party and Trade-In Values. This is not a guarantee of actual depreciation. Local weather conditions, market factors and driver performance will also impact your vehicle's actual depreciation.
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Specifications
Dimensions, Weights & Capacities
Curb Weight | 4255 lbs. | ||
|---|---|---|---|
Fuel Capacity | 18.5 gallons | ||
Max Seating Capacity | 4 | ||
Overall Length | 192.8 inches | ||
Wheel Base | 112.4 inches | ||
Width with mirrors | 81.9 inches |
Exterior
Adaptive Headlights | Available | ||
|---|---|---|---|
Alloy Wheels | Available | ||
Fog Lights | Available | ||
HID Headlights | Available | ||
Number of Doors | 2 doors | ||
Power Folding Exterior Mirrors | Available | ||
Power Retractable Top | Available | ||
LED Headlights | Available |
Fuel Economy
City | 20 mpg | ||
|---|---|---|---|
Highway | 31 mpg | ||
Combined | 24 mpg |
Mechanical
Drivetrain | RWD | ||
|---|---|---|---|
Transmission Type | Automatic | ||
8 speed | Available | ||
Recommended Fuel | Premium | ||
Parking Assist System | Available |
Performance
Horsepower | 315 @ 5800 RPM | ||
|---|---|---|---|
Torque | 330 @ 1400 rpm | ||
Engine | 6-Cyl, Turbo, 3.0 Liter | ||
0 to 60 | 5.5 seconds | ||
Top Speed | 130 mph |
Warranty
Basic | 4 years / 50000 miles | ||
|---|---|---|---|
Powertrain | 4 years / 50000 miles | ||
Corrosion | 12 years / Unlimited miles |
2015 BMW 6 Series 640i Convertible 2D Standard Features
2015 BMW 6 Series
KBB.com Review
Kbb.com Expert Rating
With prodigious power, advanced technology, and luxurious surroundings, the 2015 BMW 6 Series offers a surprising value compared to competition like the Jaguar XK and Mercedes-Benz E-Class Coupe.
Of course, "value" is relative, as the base price of a BMW 6 Series is more than $75,000. If that’s too dear for you, the Audi S5 offers a quick package at a considerably lower price. BMW’s own 4 Series coupe does the same, and keeps that coveted badge.
2015 BMW 6 Series
KBB.com Consumer Reviews
Consumer Rating
2015 BMW 6 Series 640i Convertible 2D Safety
Safety Features & Technology
Compare to Similar Vehicles
![]() Used 2015 BMW 6 Series 640i Convertible 2D | ![]() Used 2019 FIAT 500c Abarth | ![]() Used 2018 FIAT 124 Spider | ![]() Used 2018 Audi A3 | ||
|---|---|---|---|---|---|
| Price | $16,000 | $14,450 | $14,650 | $16,000 | |
| KBB.com Rating | 3.9 | 3.5 | 4.5 | 4.6 | |
| Consumer Rating | 4.8 | 4.4 | 4.9 | 4.0 | |
| Fuel Economy | City 20/Hwy 31/Comb 24 MPG | City 28/Hwy 33/Comb 30 MPG | City 25/Hwy 36/Comb 29 MPG | City 25/Hwy 33/Comb 28 MPG | |
| Fuel Type | Gas | Gas | Gas | Gas | |
| Seating Capacity | 4 | 4 | 2 | 4 | |
| Basic Warranty | 4 years or 50000 miles | 4 years or 50000 miles | 4 years or 50000 miles | 4 years or 50000 miles | |
| Horsepower | 315 @ 5800 RPM | 160 @ 5500 RPM | 160 @ 5500 RPM | 220 @ 4500 RPM | |
| Engine | 6-Cyl, Turbo, 3.0 Liter | 4-Cyl, MultiAir, Turbo, 1.4 Liter | 4-Cyl, MultiAir, Turbo, 1.4 Liter | 4-Cyl, Turbo, 2.0 Liter | |
| Drivetrain | RWD | FWD | RWD | FWD |





