The Comparative Analysis :
BMW 640d Cabrio xDrive Steptronic (15 - 18) vs. BMW M850i Cabrio xDrive Steptronic Sport (19 - ..)
€ 99,300

€ 133,700

€ 99,300
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 640d Cabrio is 4.3 cm longer, 0.8 cm narrower and 2 cm taller than the M850i Cabrio.
640d 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
640d Cabrio
M850i Cabrio
2005 kg
Kerb Weight
2090 kg
2440 kg
Gross Vehicle
Weight
Weight
2515 kg

Weight Difference:
85 kg
4.07 %

General
640d Cabrio
M850i Cabrio
F12
Generation
G14
Convertible
Car Body Style
Convertible
Diesel
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
640d Cabrio
M850i Cabrio
Straight-six diesel engine with two turbochargers (biturbo)
Engine Type
V8 petrol engine with two turbochargers (biturbo)
BMW N57
Engine Series
BMW N63
N57-D30
Engine Code
N63-B44

4
Valves
4
6
Cylinders
8
2993 CC
Engine Capacity
4395 CC
309 bhp
at 4400 rpm
Power
523 bhp
at 5500 rpm
640d Cabrio
309 bhp
523 bhp
M850i Cabrio
630 NM
at 1500 rpm
Max. Torque
750 NM
at 1800 rpm
640d Cabrio
630 NM
750 NM
M850i Cabrio
Performance
640d Cabrio
M850i Cabrio
155 mph
Maximum Speed
155 mph
5.3 sec
Acceleration 0 to 62 mph
3.9 sec
62 mph
62
mph
mph
74 m
0.000 sec

640d Cabrio
62 mph
62
mph
mph
54 m
0.000 sec

M850i Cabrio
▶ REPLAY
6.49 kg/bhp
Weight-to-Power Ratio
4 kg/bhp
640d Cabrio
6.49 kg/bhp
4 kg/bhp
M850i Cabrio
Fuel Economy / Emissions
640d Cabrio
M850i Cabrio
Fuel Economy
49 mpg
combined
28 mpg
640d Cabrio
49 mpg
28 mpg
M850i Cabrio
42 mpg
city
No data
No data
motorway
No data
70 L
Fuel Tank Capacity
68 L
750 mi
Range
414 mi
640d Cabrio
750 mi
414 mi
M850i Cabrio
Environmental Impact
119.3 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
640d Cabrio
119.3 kWh
193.3 kWh
M850i Cabrio
Euro 6b (NEFZ)
Emission Standard
Euro 6d-TEMP-EVAP-ISC (WLTP)
154 g/km (NEFZ)
CO2 Emissions
261 g/km (WLTP)
Practical Convenience
640d Cabrio
M850i Cabrio
2
Doors
2
4
No. of Seats
4
435 kg
Maximum Payload
425 kg
350 L
Boot Capacity
350 L








No data
Boot Capacity (Seats Down)
No data