The Comparative Analysis :

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

€ 102,500
BMW 840i Convertible Steptronic (19 - ..) 840i Cabrio
€ 87,300
 BMW 640i Convertible xDrive Automatic (13 - 13) 640i Cabrio
€ 102,500
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 87,300

ⓘ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 640i Cabrio.
840i Cabrio
640i Cabrio
52.7
Blueprint BMW 840i Convertible Steptronic (19 - ..)
74.9
84.1
53.7
Blueprint BMW 640i Convertible xDrive Automatic (13 - 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 840i Convertible Steptronic (19 - ..)
111.1
190.7
Blueprint BMW 640i Convertible xDrive Automatic (13 - 13)
112.4
192.7
190.7 in
Length
192.7 in
111.1 in
Wheelbase
112.4 in

Vehicle Weight

840i Cabrio
640i Cabrio
4200 lb
Curb Weight
4376 lb
5159 lb
Gross Vehicle
Weight
5291 lb
BMW 840i Convertible Steptronic (19 - ..)
Weight Difference:
176 lb
4.02 %
BMW 640i Convertible xDrive Automatic (13 - 13)

General

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

Engine

840i Cabrio
640i Cabrio
Straight-six gasoline engine with tur­bo­charger
Engine Type
Straight-six gasoline engine with tur­bo­charger
BMW B58
Engine Series
BMW N55
B58-B30
Engine Code
N55-B30
4
Valves
4
6
Cylinders
6
3 L / 147 cu in
Displacement
3 L / 147 cu in
335 hp
at 5000 rpm
Power
316 hp
at 5800 rpm
840i Cabrio
335 hp
316 hp
640i Cabrio
369 lb‑ft
at 1600 rpm
Max. Torque
332 lb‑ft
at 1300 rpm
840i Cabrio
369 lb‑ft
332 lb‑ft
640i Cabrio

Performance

840i Cabrio
640i Cabrio
155 mph
Maximum Speed
155 mph
5.3 sec
Acceleration 0 to 62 mph
5.4 sec
62 mph 62
mph

243 ft
0.000 sec

840i Cabrio

62 mph 62
mph

246 ft
0.000 sec

640i Cabrio

▶ REPLAY
12.54 lb/hp
Weight-to-Power Ratio
13.85 lb/hp
840i Cabrio
12.54 lb/hp
13.85 lb/hp
640i Cabrio

Fuel Economy / Emissions

840i Cabrio
640i Cabrio
Fuel Economy
32 mpg
combined
29 mpg
840i Cabrio
32 mpg
29 mpg
640i Cabrio
26 mpg
city
21 mpg
No data
highway
No data
Kraftstoffanzeige
18 gal
Fuel Tank Capacity
18.5 gal
Kraftstoffanzeige
571 mi
Range
531 mi
840i Cabrio
571 mi
531 mi
640i Cabrio
Environmental Impact
140.2 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).
155.3 kWh
840i Cabrio
140.2 kWh
155.3 kWh
640i Cabrio
Euro 6d-TEMP-EVAP-ISC (WLTP)
Emission Standard
Euro 5
311 g/mi (WLTP)
CO2 Emissions
309 g/mi (NEFZ)

Practical Convenience

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