The Comparative Analysis :
BMW 840i Convertible xDrive Steptronic (19 - ..) vs. BMW 640d Convertible xDrive Steptronic (12 - 14)
€ 105,800
€ 90,800
€ 105,800
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 90,800
ⓘ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 840i Cabrio is 2 inches shorter, 0.3 inches wider and an inch lower than the 640d Cabrio.
840i Cabrio
640d Cabrio
52.7
74.9
84.1
53.7
74.6
81.9
74.9 in
Width
74.6 in
84.1 in
Width Incl. Mirrors
81.9 in
52.7 in
Height
53.7 in
111.1
190.7
112.4
192.7
190.7 in
Length
192.7 in
111.1 in
Wheelbase
112.4 in
Vehicle Weight
840i Cabrio
640d Cabrio
4310 lb
Curb Weight
4420 lb
5291 lb
Gross Vehicle
Weight
Weight
5379 lb
Weight Difference:
110 lb
2.49 %
General
840i Cabrio
640d Cabrio
G14
Generation
F12
Convertible
Car Body Style
Convertible
Premium Unleaded
Fuel Type
Diesel
Permanent all-wheel drive (AWD)
Drivetrain
Permanent all-wheel drive (AWD)
8-speed automatic transmission
Transmission
8-speed automatic transmission
Engine
840i Cabrio
640d Cabrio
Straight-six gasoline engine with turbocharger
Engine Type
Straight-six diesel engine with two turbochargers (biturbo)
BMW B58
Engine Series
BMW N57
B58-B30
Engine Code
N57-D30
4
Valves
4
6
Cylinders
6
3 L / 147 cu in
Displacement
3 L / 147 cu in
335 hp
at 5000 rpm
Power
309 hp
at 4400 rpm
840i Cabrio
335 hp
309 hp
640d Cabrio
369 lb‑ft
at 1600 rpm
Max. Torque
465 lb‑ft
at 1500 rpm
840i Cabrio
369 lb‑ft
465 lb‑ft
640d Cabrio
Performance
840i Cabrio
640d Cabrio
155 mph
Maximum Speed
155 mph
4.9 sec
Acceleration 0 to 62 mph
5.4 sec
62 mph
62
mph
mph
223 ft
0.000 sec
840i Cabrio
62 mph
62
mph
mph
246 ft
0.000 sec
640d Cabrio
▶ REPLAY
12.87 lb/hp
Weight-to-Power Ratio
14.3 lb/hp
840i Cabrio
12.87 lb/hp
14.3 lb/hp
640d Cabrio
Fuel Economy / Emissions
840i Cabrio
640d Cabrio
Fuel Economy
31 mpg
combined
40 mpg
840i Cabrio
31 mpg
40 mpg
640d Cabrio
24 mpg
city
33 mpg
No data
highway
No data
18 gal
Fuel Tank Capacity
18.5 gal
549 mi
Range
737 mi
840i Cabrio
549 mi
737 mi
640d Cabrio
Environmental Impact
145.8 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).
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).
121.3 kWh
840i Cabrio
145.8 kWh
121.3 kWh
640d Cabrio
Euro 6d-TEMP-EVAP-ISC (WLTP)
Emission Standard
Euro 5
330 g/mi (WLTP)
CO2 Emissions
248 g/mi (NEFZ)
Practical Convenience
840i Cabrio
640d Cabrio
2
Doors
2
4
No. of Seats
4
981 lb
Maximum Payload
959 lb
9.9 cu ft
Trunk Volume
9.9 cu ft
No data
Cargo Volume (Seats Down)
No data
