The Comparative Analysis :
BMW 640i Coupé Steptronic (15 - 17) vs. BMW M6 Coupé M DKG (12 - 14)
€ 81,900
€ 124,000
€ 81,900
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 124,000
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The 640i Coupé is a bit smaller in every dimension. It's 0.2 inches shorter, 0.2 inches narrower and 0.2 inches lower than the M6 Coupé.
640i Coupé
M6 Coupé
53.9
74.6
81.9
54.1
74.8
82.9
74.6 in
Width
74.8 in
81.9 in
Width Incl. Mirrors
82.9 in
53.9 in
Height
54.1 in
112.4
192.7
112.2
192.8
192.7 in
Length
192.8 in
112.4 in
Wheelbase
112.2 in
Vehicle Weight
640i Coupé
M6 Coupé
3880 lb
Curb Weight
4244 lb
4872 lb
Gross Vehicle
Weight
Weight
5181 lb
Weight Difference:
364 lb
8.58 %
General
640i Coupé
M6 Coupé
F13
Generation
F13
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 dual clutch transmission
Engine
640i Coupé
M6 Coupé
Straight-six gasoline engine with turbocharger
Engine Type
V8 gasoline engine with two turbochargers (biturbo)
BMW N55
Engine Series
BMW S63
N55-B30
Engine Code
S63-B44
4
Valves
4
6
Cylinders
8
3 L / 147 cu in
Displacement
4.4 L / 215 cu in
316 hp
at 5800 rpm
Power
552 hp
at 6000 rpm
640i Coupé
316 hp
552 hp
M6 Coupé
332 lb‑ft
at 1300 rpm
Max. Torque
502 lb‑ft
at 1500 rpm
640i Coupé
332 lb‑ft
502 lb‑ft
M6 Coupé
Performance
640i Coupé
M6 Coupé
155 mph
Maximum Speed
155 mph
5.3 sec
Acceleration 0 to 62 mph
4.2 sec
62 mph
62
mph
mph
243 ft
0.000 sec
640i Coupé
62 mph
62
mph
mph
190 ft
0.000 sec
M6 Coupé
▶ REPLAY
12.28 lb/hp
Weight-to-Power Ratio
7.69 lb/hp
640i Coupé
12.28 lb/hp
7.69 lb/hp
M6 Coupé
Fuel Economy / Emissions
640i Coupé
M6 Coupé
Fuel Economy
31 mpg
combined
24 mpg
640i Coupé
31 mpg
24 mpg
M6 Coupé
22 mpg
city
17 mpg
No data
highway
No data
18.5 gal
Fuel Tank Capacity
21.1 gal
572 mi
Range
502 mi
640i Coupé
572 mi
502 mi
M6 Coupé
Environmental Impact
144 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).
187.5 kWh
640i Coupé
144 kWh
187.5 kWh
M6 Coupé
Euro 6b (NEFZ)
Emission Standard
Euro 5
285 g/mi (NEFZ)
CO2 Emissions
373 g/mi (NEFZ)
Practical Convenience
640i Coupé
M6 Coupé
2
Doors
2
4
No. of Seats
4
992 lb
Maximum Payload
937 lb
13 cu ft
Trunk Volume
13 cu ft
No data
Cargo Volume (Seats Down)
No data
