The Comparative Analysis :
BMW M6 Convertible M DKG (12 - 14) vs. BMW 640i Convertible Automatic (11 - 13)
€ 131,400
€ 83,900
€ 131,400
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 83,900
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The M6 Cabrio is a bit bigger in every dimension. It's 0.2 inches longer, 0.2 inches wider and 0.3 inches taller than the 640i Cabrio.
M6 Cabrio
640i Cabrio
54
74.8
82.9
53.7
74.6
81.9
74.8 in
Width
74.6 in
82.9 in
Width Incl. Mirrors
81.9 in
54 in
Height
53.7 in
112.2
192.8
112.4
192.7
192.8 in
Length
192.7 in
112.2 in
Wheelbase
112.4 in
Vehicle Weight
M6 Cabrio
640i Cabrio
4530 lb
Curb Weight
4222 lb
5313 lb
Gross Vehicle
Weight
Weight
5049 lb
Weight Difference:
309 lb
6.82 %
General
M6 Cabrio
640i Cabrio
F12
Generation
F12
Convertible
Car Body Style
Convertible
Premium Unleaded
Fuel Type
Premium Unleaded
Rear-wheel drive
Drivetrain
Rear-wheel drive
7-speed dual clutch transmission
Transmission
8-speed automatic transmission
Engine
M6 Cabrio
640i Cabrio
V8 gasoline engine with two turbochargers (biturbo)
Engine Type
Straight-six gasoline engine with turbocharger
BMW S63
Engine Series
BMW N55
S63-B44
Engine Code
N55-B30
4
Valves
4
8
Cylinders
6
4.4 L / 215 cu in
Displacement
3 L / 147 cu in
552 hp
at 6000 rpm
Power
316 hp
at 5800 rpm
M6 Cabrio
552 hp
316 hp
640i Cabrio
502 lb‑ft
at 1500 rpm
Max. Torque
332 lb‑ft
at 1300 rpm
M6 Cabrio
502 lb‑ft
332 lb‑ft
640i Cabrio
Performance
M6 Cabrio
640i Cabrio
155 mph
Maximum Speed
155 mph
4.3 sec
Acceleration 0 to 62 mph
5.7 sec
62 mph
62
mph
mph
197 ft
0.000 sec
M6 Cabrio
62 mph
62
mph
mph
259 ft
0.000 sec
640i Cabrio
▶ REPLAY
8.21 lb/hp
Weight-to-Power Ratio
13.36 lb/hp
M6 Cabrio
8.21 lb/hp
13.36 lb/hp
640i Cabrio
Fuel Economy / Emissions
M6 Cabrio
640i Cabrio
Fuel Economy
23 mpg
combined
30 mpg
M6 Cabrio
23 mpg
30 mpg
640i Cabrio
16 mpg
city
22 mpg
No data
highway
No data
21.1 gal
Fuel Tank Capacity
18.5 gal
483 mi
Range
557 mi
M6 Cabrio
483 mi
557 mi
640i Cabrio
Environmental Impact
195.2 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 Cabrio
195.2 kWh
147.7 kWh
640i Cabrio
Euro 5
Emission Standard
Euro 5
385 g/mi (NEFZ)
CO2 Emissions
291 g/mi (NEFZ)
Practical Convenience
M6 Cabrio
640i Cabrio
2
Doors
2
4
No. of Seats
4
783 lb
Maximum Payload
827 lb
9.9 cu ft
Trunk Volume
9.9 cu ft
No data
Cargo Volume (Seats Down)
No data
