The Comparative Analysis :
BMW 640i Cabrio xDrive Steptronic (13 - 14) vs. BMW M850i Cabrio xDrive Steptronic Sport (19 - ..)
€ 87,300
€ 133,700
€ 87,300
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 133,700
ⓘ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 640i Cabrio is 4.3 cm longer, 0.8 cm narrower and 2 cm taller than the M850i Cabrio.
640i Cabrio
M850i Cabrio
1365
1894
2081
1345
1902
2137
1894 mm
Width
1902 mm
2081 mm
Width Incl. Mirrors
2137 mm
1365 mm
Height
1345 mm
2855
4894
2822
4851
4894 mm
Length
4851 mm
2855 mm
Wheelbase
2822 mm
Vehicle Weight
640i Cabrio
M850i Cabrio
1985 kg
Kerb Weight
2090 kg
2400 kg
Gross Vehicle
Weight
Weight
2515 kg
Weight Difference:
105 kg
5.02 %
General
640i Cabrio
M850i Cabrio
F12
Generation
G14
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
640i Cabrio
M850i Cabrio
Straight-six petrol engine with turbocharger
Engine Type
V8 petrol engine with two turbochargers (biturbo)
BMW N55
Engine Series
BMW N63
N55-B30
Engine Code
N63-B44
4
Valves
4
6
Cylinders
8
2979 CC
Engine Capacity
4395 CC
316 bhp
at 5800 rpm
Power
523 bhp
at 5500 rpm
640i Cabrio
316 bhp
523 bhp
M850i Cabrio
450 NM
at 1300 rpm
Max. Torque
750 NM
at 1800 rpm
640i Cabrio
450 NM
750 NM
M850i Cabrio
Performance
640i Cabrio
M850i Cabrio
155 mph
Maximum Speed
155 mph
5.4 sec
Acceleration 0 to 62 mph
3.9 sec
62 mph
62
mph
mph
75 m
0.000 sec
640i Cabrio
62 mph
62
mph
mph
54 m
0.000 sec
M850i Cabrio
▶ REPLAY
6.28 kg/bhp
Weight-to-Power Ratio
4 kg/bhp
640i Cabrio
6.28 kg/bhp
4 kg/bhp
M850i Cabrio
Fuel Economy / Emissions
640i Cabrio
M850i Cabrio
Fuel Economy
34 mpg
combined
28 mpg
640i Cabrio
34 mpg
28 mpg
M850i Cabrio
25 mpg
city
No data
No data
motorway
No data
70 L
Fuel Tank Capacity
68 L
531 mi
Range
414 mi
640i Cabrio
531 mi
414 mi
M850i Cabrio
Environmental Impact
155.3 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).
193.3 kWh
640i Cabrio
155.3 kWh
193.3 kWh
M850i Cabrio
Euro 6b (NEFZ)
Emission Standard
Euro 6d-TEMP-EVAP-ISC (WLTP)
192 g/km (NEFZ)
CO2 Emissions
261 g/km (WLTP)
Practical Convenience
640i Cabrio
M850i Cabrio
2
Doors
2
4
No. of Seats
4
415 kg
Maximum Payload
425 kg
350 L
Boot Capacity
350 L
No data
Boot Capacity (Seats Down)
No data
