Used 2021 BMW 8 Series 840i 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 | $42,250 | $44,560 | ||
Very Good | $41,150 | $43,360 | ||
Good | $39,850 | $41,960 | ||
Fair | $36,550 | $38,560 |
Estimated Trade-In Values for the 2021 BMW 8 Series 840i Convertible 2D range from about $36,550 to $42,250 depending on vehicle condition. Estimated Private Party Values range from about $38,560 to $44,560 depending on vehicle condition. Valid for ZIP Code 43085 through 9/15/2026.
2021 BMW 8 Series 840i Convertible 2D Depreciation
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2021 BMW 8 Series 840i Convertible 2D Annual Depreciation
Year | Vehicle Depreciation* | Resale Value | Trade-In Value | ||
|---|---|---|---|---|---|
2023 | $20,929 | $60,790 | $56,615 | ||
2024 | $12,111 | $48,679 | $44,757 | ||
2025 | $2,036 | $46,643 | $43,449 | ||
Now | $4,843 | $41,800 | $39,700 |
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2-Year Forecasted Depreciation
*Depreciation for the last 12 months of the private party resale value.
2021 BMW 8 Series 840i 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 | 4211 lbs. | ||
|---|---|---|---|
Fuel Capacity | 18.0 gallons | ||
Front Head Room | 38.9 inches | ||
Front Leg Room | 42.1 inches | ||
Max Seating Capacity | 5 | ||
Overall Length | 191.1 inches | ||
Front Shoulder Room | 57.2 inches | ||
Trunk or Cargo Capacity | 12.4 cu.ft. | ||
Wheel Base | 111.1 inches | ||
Width with mirrors | 84.1 inches |
Exterior
Alloy Wheels | Available | ||
|---|---|---|---|
Number of Doors | 2 doors | ||
Power Folding Exterior Mirrors | Available | ||
Power Retractable Top | Available |
Fuel Economy
City | 22 mpg | ||
|---|---|---|---|
Highway | 29 mpg | ||
Combined | 25 mpg |
Mechanical
Drivetrain | RWD | ||
|---|---|---|---|
Transmission Type | Automatic | ||
8 speed | Available | ||
Recommended Fuel | Premium | ||
Parking Assist System | Available |
Performance
Horsepower | 335 @ 5000 RPM | ||
|---|---|---|---|
Torque | 368 @ 1600 rpm | ||
Engine | 6-Cyl, Turbo, 3.0 Liter | ||
0 to 60 | 5.0 seconds | ||
Top Speed | 155 mph |
Warranty
Basic | 4 years / 50000 miles | ||
|---|---|---|---|
Powertrain | 4 years / 50000 miles | ||
Corrosion | 12 years / Unlimited miles |
2021 BMW 8 Series 840i Convertible 2D Standard Features
2021 BMW 8 Series
KBB.com Review
Kbb.com Expert Rating
Brilliant handling for its size. Choice of powerful engines. Available in coupe, convertible & 4-door Gran Coupe styles. Luxurious interior. Optional all-wheel drive.
Limited rear legroom in coupe & convertible. Limited rear headroom in Gran Coupe. Can become pricey compared with the competition.
2021 BMW 8 Series
KBB.com Consumer Reviews
Consumer Rating
2021 BMW 8 Series 840i Convertible 2D Safety
Safety Features & Technology
Compare to Similar Vehicles
 Used 2021 BMW 8 Series 840i Convertible 2D |  Used 2021 Mercedes-Benz E-Class |  New 2026 BMW 8 Series |  Used 2021 Audi S5 | ||
|---|---|---|---|---|---|
| Price | $45,000 | $40,300 | $106,050 | $37,200 | |
| KBB.com Rating | 4.1 | 4.7 | 4.1 | N/A | |
| Consumer Rating | 4.8 | 4.2 | 4.8 | 4.7 | |
| Fuel Economy | City 22/Hwy 29/Comb 25 MPG | City 23/Hwy 30/Comb 25 MPG | City 21/Hwy 29/Comb 24 MPG | City 20/Hwy 28/Comb 23 MPG | |
| Fuel Type | Gas | N/A | Gas | N/A | |
5 Year Cost To Own 5-Year Cost to Own includes out of pocket expenses like fuel and insurance, plus the car’s loss in value over time (depreciation). | N/A | N/A | $131,432 | N/A | |
| Seating Capacity | 5 | 4 | 5 | 4 | |
| Basic Warranty | 4 years or 50000 miles | 4 years or 50000 miles | 4 years or 50000 miles | 4 years or 50000 miles | |
| Horsepower | 335 @ 5000 RPM | 362 @ 5500 RPM | 335 @ 5000 RPM | 349 HP | |
| Engine | 6-Cyl, Turbo, 3.0 Liter | 6-Cyl, Turbo, 3.0 Liter w/EQ Boost | 6-Cyl, Turbo, 3.0 Liter | V6, Turbo, 3.0 Liter | |
| Drivetrain | RWD | RWD | RWD | AWD |