The Comparative Analysis :

BMW 640d Convertible Steptronic (11 - 14) vs. BMW 840d Convertible xDrive Steptronic (19 - ..)

€ 87,400
BMW 640d Convertible Steptronic (11 - 14) 640d Cabrio
€ 108,000
 BMW 840d Convertible xDrive Steptronic (19 - ..) 840d Cabrio
€ 87,400
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 108,000

ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info

Vehicle Dimensions

The dimensions of these vehicles differ a little. The 640d Cabrio is 2 inches longer, 0.3 inches narrower and an inch taller than the 840d Cabrio.
640d Cabrio
840d Cabrio
53.7
Blueprint BMW 640d Convertible Steptronic (11 - 14)
74.6
81.9
52.7
Blueprint BMW 840d Convertible xDrive Steptronic (19 - ..)
74.9
84.1
74.6 in
Width
74.9 in
81.9 in
Width Incl. Mirrors
84.1 in
53.7 in
Height
52.7 in
Blueprint BMW 640d Convertible Steptronic (11 - 14)
112.4
192.7
Blueprint BMW 840d Convertible xDrive Steptronic (19 - ..)
111.1
190.7
192.7 in
Length
190.7 in
112.4 in
Wheelbase
111.1 in

Vehicle Weight

640d Cabrio
840d Cabrio
4266 lb
Curb Weight
4475 lb
5159 lb
Gross Vehicle
Weight
5478 lb
BMW 640d Convertible Steptronic (11 - 14)
Weight Difference:
209 lb
4.67 %
BMW 840d Convertible xDrive Steptronic (19 - ..)

General

640d Cabrio
840d Cabrio
F12
Generation
G14
Convertible
Car Body Style
Convertible
Diesel
Fuel Type
Diesel
Rear-wheel drive
Drivetrain
Permanent all-wheel drive (AWD)
8-speed automatic transmission
Transmission
8-speed automatic transmission

Engine

640d Cabrio
840d Cabrio
Straight-six diesel engine with two tur­bo­chargers (bi­turbo)
Engine Type
Straight-six diesel engine with two tur­bo­chargers (bi­turbo)
BMW N57
Engine Series
BMW B57
N57-D30
Engine Code
B57-D30
4
Valves
4
6
Cylinders
6
3 L / 147 cu in
Displacement
3 L / 147 cu in
309 hp
at 4400 rpm
Power
316 hp
at 4400 rpm
640d Cabrio
309 hp
316 hp
840d Cabrio
465 lb‑ft
at 1500 rpm
Max. Torque
502 lb‑ft
at 1750 rpm
640d Cabrio
465 lb‑ft
502 lb‑ft
840d Cabrio

Performance

640d Cabrio
840d Cabrio
155 mph
Maximum Speed
155 mph
5.6 sec
Acceleration 0 to 62 mph
5.2 sec
62 mph 62
mph

256 ft
0.000 sec

640d Cabrio

62 mph 62
mph

236 ft
0.000 sec

840d Cabrio

▶ REPLAY
13.81 lb/hp
Weight-to-Power Ratio
14.16 lb/hp
640d Cabrio
13.81 lb/hp
14.16 lb/hp
840d Cabrio

Fuel Economy / Emissions

640d Cabrio
840d Cabrio
Fuel Economy
42 mpg
combined
38 mpg
640d Cabrio
42 mpg
38 mpg
840d Cabrio
35 mpg
city
32 mpg
No data
highway
No data
Kraftstoffanzeige
18.5 gal
Fuel Tank Capacity
17.4 gal
Kraftstoffanzeige
777 mi
Range
662 mi
640d Cabrio
777 mi
662 mi
840d Cabrio
Environmental Impact
115.2 kWh
Total Energy Consumption
per 100 miles ⓘThe total energy consumption per 100 miles is the amount of energy consumed by a vehicle when burning fuel or using electricity per 100 miles (final energy), and the energy required to produce the appropriate amount of fuel or electricity (primary energy).
127.6 kWh
640d Cabrio
115.2 kWh
127.6 kWh
840d Cabrio
Euro 5
Emission Standard
Euro 6d-TEMP-EVAP-ISC (WLTP)
237 g/mi (NEFZ)
CO2 Emissions
296 g/mi (WLTP)

Practical Convenience

640d Cabrio
840d Cabrio
2
Doors
2
4
No. of Seats
4
893 lb
Maximum Payload
1003 lb
9.9 cu ft
Trunk Volume
9.9 cu ft
No data
Cargo Volume (Seats Down)
No data