The Comparative Analysis :
BMW M850i Cabrio xDrive Steptronic Sport (19 - ..) vs. BMW 640i Cabrio xDrive Automatic (13 - 13)
€ 133,700
€ 87,300
€ 133,700
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 M850i Cabrio is 4.3 cm shorter, 0.8 cm wider and 2 cm lower than the 640i Cabrio.
M850i Cabrio
640i Cabrio
1345
1902
2137
1365
1894
2081
1902 mm
Width
1894 mm
2137 mm
Width Incl. Mirrors
2081 mm
1345 mm
Height
1365 mm
2822
4851
2855
4894
4851 mm
Length
4894 mm
2822 mm
Wheelbase
2855 mm
Vehicle Weight
M850i Cabrio
640i Cabrio
2090 kg
Kerb Weight
1985 kg
2515 kg
Gross Vehicle
Weight
Weight
2400 kg
Weight Difference:
105 kg
5.02 %
General
M850i Cabrio
640i Cabrio
G14
Generation
F12
Convertible
Car Body Style
Convertible
Super Unleaded (98 RON)
Fuel Type
Super Unleaded (98 RON)

Permanent all-wheel drive
Drive
Permanent all-wheel drive

8-speed automatic transmission
Transmission
8-speed automatic transmission
Engine
M850i Cabrio
640i Cabrio
V8 petrol engine with two turbochargers (biturbo)
Engine Type
Straight-six petrol engine with turbocharger
BMW N63
Engine Series
BMW N55
N63-B44
Engine Code
N55-B30

4
Valves
4
8
Cylinders
6
4395 CC
Engine Capacity
2979 CC
523 bhp
at 5500 rpm
Power
316 bhp
at 5800 rpm
M850i Cabrio
523 bhp
316 bhp
640i Cabrio
750 NM
at 1800 rpm
Max. Torque
450 NM
at 1300 rpm
M850i Cabrio
750 NM
450 NM
640i Cabrio
Performance
M850i Cabrio
640i Cabrio
155 mph
Maximum Speed
155 mph
3.9 sec
Acceleration 0 to 62 mph
5.4 sec
62 mph
62
mph
mph
54 m
0.000 sec
M850i Cabrio
62 mph
62
mph
mph
75 m
0.000 sec
640i Cabrio
▶ REPLAY
4 kg/bhp
Weight-to-Power Ratio
6.28 kg/bhp
M850i Cabrio
4 kg/bhp
6.28 kg/bhp
640i Cabrio
Fuel Economy / Emissions
M850i Cabrio
640i Cabrio
Fuel Economy
28 mpg
combined
34 mpg
M850i Cabrio
28 mpg
34 mpg
640i Cabrio
No data
city
25 mpg
No data
motorway
No data
68 L
Fuel Tank Capacity
70 L
414 mi
Range
531 mi
M850i Cabrio
414 mi
531 mi
640i Cabrio
Environmental Impact
193.3 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).
155.3 kWh
M850i Cabrio
193.3 kWh
155.3 kWh
640i Cabrio
Euro 6d-TEMP-EVAP-ISC (WLTP)
Emission Standard
Euro 5
261 g/km (WLTP)
CO2 Emissions
192 g/km (NEFZ)
Practical Convenience
M850i Cabrio
640i Cabrio
2
Doors
2
4
No. of Seats
4
425 kg
Maximum Payload
415 kg
350 L
Boot Capacity
350 L








No data
Boot Capacity (Seats Down)
No data


















