The Comparative Analysis :
BMW 640i Gran Coupé Steptronic (13 - 14) vs. BMW M6 Coupé SMG (05 - 10)
€ 79,900
€ 116,200
€ 79,900
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 116,200
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The 640i Gran Coupé is slightly bigger in every dimension. It's 5.4 inches longer, 1.5 inches wider and 0.6 inches taller than the M6 Coupé.
640i Gran Coupé
M6 Coupé
54.8
74.6
81.9
54.2
73
80.2
74.6 in
Width
73 in
81.9 in
Width Incl. Mirrors
80.2 in
54.8 in
Height
54.2 in
116.9
197.1
109.5
191.8
197.1 in
Length
191.8 in
116.9 in
Wheelbase
109.5 in
Vehicle Weight
640i Gran Coupé
M6 Coupé
4023 lb
Curb Weight
3935 lb
5203 lb
Gross Vehicle
Weight
Weight
4850 lb
Weight Difference:
88 lb
2.19 %
General
640i Gran Coupé
M6 Coupé
F06
Generation
E63
Coupe
Car Body Style
Coupe
Premium Unleaded
Fuel Type
Premium Unleaded
Rear-wheel drive
Drivetrain
Rear-wheel drive
8-speed automatic transmission
Transmission
7-speed automated manual transmission (AMT)
Engine
640i Gran Coupé
M6 Coupé
Straight-six gasoline engine with turbocharger
Engine Type
V10 gasoline engine (naturally aspirated engine)
BMW N55
Engine Series
BMW S85
N55-B30
Engine Code
S85-B50
4
Valves
4
6
Cylinders
10
3 L / 147 cu in
Displacement
5 L / 245 cu in
316 hp
at 5800 rpm
Power
500 hp
at 7750 rpm
640i Gran Coupé
316 hp
500 hp
M6 Coupé
332 lb‑ft
at 1300 rpm
Max. Torque
384 lb‑ft
at 6100 rpm
640i Gran Coupé
332 lb‑ft
384 lb‑ft
M6 Coupé
Performance
640i Gran Coupé
M6 Coupé
155 mph
Maximum Speed
155 mph
5.4 sec
Acceleration 0 to 62 mph
4.6 sec
62 mph
62
mph
mph
246 ft
0.000 sec
640i Gran Coupé
62 mph
62
mph
mph
210 ft
0.000 sec
M6 Coupé
▶ REPLAY
12.73 lb/hp
Weight-to-Power Ratio
7.87 lb/hp
640i Gran Coupé
12.73 lb/hp
7.87 lb/hp
M6 Coupé
Fuel Economy / Emissions
640i Gran Coupé
M6 Coupé
Fuel Economy
30 mpg
combined
16 mpg
640i Gran Coupé
30 mpg
16 mpg
M6 Coupé
22 mpg
city
11 mpg
No data
highway
No data
18.5 gal
Fuel Tank Capacity
18.5 gal
557 mi
Range
304 mi
640i Gran Coupé
557 mi
304 mi
M6 Coupé
Environmental Impact
147.7 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).
270.9 kWh
640i Gran Coupé
147.7 kWh
270.9 kWh
M6 Coupé
Euro 6b (NEFZ)
Emission Standard
Euro 4
291 g/mi (NEFZ)
CO2 Emissions
550 g/mi (NEFZ)
Practical Convenience
640i Gran Coupé
M6 Coupé
4
Doors
2
5
No. of Seats
4
1179 lb
Maximum Payload
915 lb
13 cu ft
Trunk Volume
12.7 cu ft
No data
Cargo Volume (Seats Down)
No data
