The Comparative Analysis :

BMW 640i Cabrio xDrive Steptronic (15 - 18) vs. BMW M6 Cabrio M DKG (12 - 14)

€ 95,100
BMW 640i Cabrio xDrive Steptronic (15 - 18) 640i Cabrio
€ 131,400
 BMW M6 Cabrio M DKG (12 - 14) M6 Cabrio
€ 95,100
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 131,400

ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info

Vehicle Dimensions

The 640i Cabrio is a bit smaller in every dimension. It's 0.4 cm shorter, 0.5 cm narrower and 0.7 cm lower than the M6 Cabrio.
640i Cabrio
M6 Cabrio
1365
Blueprint BMW 640i Cabrio xDrive Steptronic (15 - 18)
1894
2081
1372
Blueprint BMW M6 Cabrio M DKG (12 - 14)
1899
2106
1894 mm
Width
1899 mm
2081 mm
Width Incl. Mirrors
2106 mm
1365 mm
Height
1372 mm
Blueprint BMW 640i Cabrio xDrive Steptronic (15 - 18)
2855
4894
Blueprint BMW M6 Cabrio M DKG (12 - 14)
2851
4898
4894 mm
Length
4898 mm
2855 mm
Wheelbase
2851 mm

Vehicle Weight

640i Cabrio
M6 Cabrio
1965 kg
Kerb Weight
2055 kg
2390 kg
Gross Vehicle
Weight
2410 kg
BMW 640i Cabrio xDrive Steptronic (15 - 18)
Weight Difference:
90 kg
4.38 %
BMW M6 Cabrio M DKG (12 - 14)

General

640i Cabrio
M6 Cabrio
F12
Generation
F12
Convertible
Car Body Style
Convertible
Super Unleaded (98 RON)
Fuel Type
Super Unleaded (98 RON)
Permanent all-wheel drive
Drive
Rear-wheel drive
8-speed automatic transmission
Transmission
7-speed dual clutch transmission

Engine

640i Cabrio
M6 Cabrio
Straight-six petrol engine with tur­bo­charger
Engine Type
V8 petrol engine with two tur­bo­chargers (bi­turbo)
BMW N55
Engine Series
BMW S63
N55-B30
Engine Code
S63-B44
4
Valves
4
6
Cylinders
8
2979 CC
Engine Capacity
4395 CC
316 bhp
at 5800 rpm
Power
552 bhp
at 6000 rpm
640i Cabrio
316 bhp
552 bhp
M6 Cabrio
450 NM
at 1300 rpm
Max. Torque
680 NM
at 1500 rpm
640i Cabrio
450 NM
680 NM
M6 Cabrio

Performance

640i Cabrio
M6 Cabrio
155 mph
Maximum Speed
155 mph
5.4 sec
Acceleration 0 to 62 mph
4.3 sec
62 mph 62
mph

75 m
0.000 sec

640i Cabrio

62 mph 62
mph

60 m
0.000 sec

M6 Cabrio

▶ REPLAY
6.22 kg/bhp
Weight-to-Power Ratio
3.72 kg/bhp
640i Cabrio
6.22 kg/bhp
3.72 kg/bhp
M6 Cabrio

Fuel Economy / Emissions

640i Cabrio
M6 Cabrio
Fuel Economy
34 mpg
combined
27 mpg
640i Cabrio
34 mpg
27 mpg
M6 Cabrio
25 mpg
city
20 mpg
No data
motorway
No data
Kraftstoffanzeige
70 L
Fuel Tank Capacity
80 L
Kraftstoffanzeige
531 mi
Range
483 mi
640i Cabrio
531 mi
483 mi
M6 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).
195.2 kWh
640i Cabrio
155.3 kWh
195.2 kWh
M6 Cabrio
Euro 6b (NEFZ)
Emission Standard
Euro 5
191 g/km (NEFZ)
CO2 Emissions
239 g/km (NEFZ)

Practical Convenience

640i Cabrio
M6 Cabrio
2
Doors
2
4
No. of Seats
4
425 kg
Maximum Payload
355 kg
350 L
Boot Capacity
350 L
No data
Boot Capacity (Seats Down)
No data