The Comparative Analysis :
BMW M6 Coupé Competition M DKG (15 - 17) vs. BMW 640i Gran Coupé Steptronic (13 - 14)
€ 139,100

€ 79,900

€ 139,100
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 79,900
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The dimensions of these vehicles differ slightly. The M6 Coupé is 10.9 cm shorter, 0.5 cm wider and 2.8 cm lower than the 640i Gran Coupé.
M6 Coupé
640i Gran Coupé
1364
1899
2106
1392
1894
2081
1899 mm
Width
1894 mm
2106 mm
Width Incl. Mirrors
2081 mm
1364 mm
Height
1392 mm
2851
4898
2968
5007
4898 mm
Length
5007 mm
2851 mm
Wheelbase
2968 mm
Vehicle Weight
M6 Coupé
640i Gran Coupé
1925 kg
Kerb Weight
1825 kg
2350 kg
Gross Vehicle
Weight
Weight
2360 kg

Weight Difference:
100 kg
5.19 %

General
M6 Coupé
640i Gran Coupé
F13
Generation
F06
Coupe
Car Body Style
Coupe
Super Unleaded (98 RON)
Fuel Type
Super Unleaded (98 RON)

Rear-wheel drive
Drive
Rear-wheel drive

7-speed dual clutch transmission
Transmission
8-speed automatic transmission
Engine
M6 Coupé
640i Gran Coupé
V8 petrol engine with two turbochargers (biturbo)
Engine Type
Straight-six petrol engine with turbocharger
BMW S63
Engine Series
BMW N55
S63-B44
Engine Code
N55-B30

4
Valves
4
8
Cylinders
6
4395 CC
Engine Capacity
2979 CC
592 bhp
at 6000 rpm
Power
316 bhp
at 5800 rpm
M6 Coupé
592 bhp
316 bhp
640i Gran Coupé
700 NM
at 1500 rpm
Max. Torque
450 NM
at 1300 rpm
M6 Coupé
700 NM
450 NM
640i Gran Coupé
Performance
M6 Coupé
640i Gran Coupé
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

M6 Coupé
62 mph
62
mph
mph
75 m
0.000 sec

640i Gran Coupé
▶ REPLAY
3.25 kg/bhp
Weight-to-Power Ratio
5.78 kg/bhp
M6 Coupé
3.25 kg/bhp
5.78 kg/bhp
640i Gran Coupé
Fuel Economy / Emissions
M6 Coupé
640i Gran Coupé
Fuel Economy
29 mpg
combined
36 mpg
M6 Coupé
29 mpg
36 mpg
640i Gran Coupé
20 mpg
city
26 mpg
No data
motorway
No data
80 L
Fuel Tank Capacity
70 L
502 mi
Range
557 mi
M6 Coupé
502 mi
557 mi
640i Gran Coupé
Environmental Impact
187.5 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).
147.7 kWh
M6 Coupé
187.5 kWh
147.7 kWh
640i Gran Coupé
Euro 6b (NEFZ)
Emission Standard
Euro 6b (NEFZ)
231 g/km (NEFZ)
CO2 Emissions
181 g/km (NEFZ)
Practical Convenience
M6 Coupé
640i Gran Coupé
2
Doors
4
4
No. of Seats
5
425 kg
Maximum Payload
535 kg
460 L
Boot Capacity
460 L










No data
Boot Capacity (Seats Down)
No data