The Comparative Analysis :

BMW 840d Convertible xDrive Steptronic (19 - ..) vs. BMW 640i Convertible Automatic (11 - 13)

€ 108,000
BMW 840d Convertible xDrive Steptronic (19 - ..) 840d Cabrio
€ 83,900
 BMW 640i Convertible Automatic (11 - 13) 640i Cabrio
€ 108,000
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 83,900

ⓘ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 840d Cabrio is 2 inches shorter, 0.3 inches wider and an inch lower than the 640i Cabrio.
840d Cabrio
640i Cabrio
52.7
Blueprint BMW 840d Convertible xDrive Steptronic (19 - ..)
74.9
84.1
53.7
Blueprint BMW 640i Convertible Automatic (11 - 13)
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
Blueprint BMW 840d Convertible xDrive Steptronic (19 - ..)
111.1
190.7
Blueprint BMW 640i Convertible Automatic (11 - 13)
112.4
192.7
190.7 in
Length
192.7 in
111.1 in
Wheelbase
112.4 in

Vehicle Weight

840d Cabrio
640i Cabrio
4475 lb
Curb Weight
4222 lb
5478 lb
Gross Vehicle
Weight
5049 lb
BMW 840d Convertible xDrive Steptronic (19 - ..)
Weight Difference:
254 lb
5.68 %
BMW 640i Convertible Automatic (11 - 13)

General

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

Engine

840d Cabrio
640i Cabrio
Straight-six diesel engine with two tur­bo­chargers (bi­turbo)
Engine Type
Straight-six gasoline engine with tur­bo­charger
BMW B57
Engine Series
BMW N55
B57-D30
Engine Code
N55-B30
4
Valves
4
6
Cylinders
6
3 L / 147 cu in
Displacement
3 L / 147 cu in
316 hp
at 4400 rpm
Power
316 hp
at 5800 rpm
840d Cabrio
316 hp
316 hp
640i Cabrio
502 lb‑ft
at 1750 rpm
Max. Torque
332 lb‑ft
at 1300 rpm
840d Cabrio
502 lb‑ft
332 lb‑ft
640i Cabrio

Performance

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

236 ft
0.000 sec

840d Cabrio

62 mph 62
mph

259 ft
0.000 sec

640i Cabrio

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

Fuel Economy / Emissions

840d Cabrio
640i Cabrio
Fuel Economy
38 mpg
combined
30 mpg
840d Cabrio
38 mpg
30 mpg
640i Cabrio
32 mpg
city
22 mpg
No data
highway
No data
Kraftstoffanzeige
17.4 gal
Fuel Tank Capacity
18.5 gal
Kraftstoffanzeige
662 mi
Range
557 mi
840d Cabrio
662 mi
557 mi
640i Cabrio
Environmental Impact
127.6 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).
147.7 kWh
840d Cabrio
127.6 kWh
147.7 kWh
640i Cabrio
Euro 6d-TEMP-EVAP-ISC (WLTP)
Emission Standard
Euro 5
296 g/mi (WLTP)
CO2 Emissions
291 g/mi (NEFZ)

Practical Convenience

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