The Comparative Analysis :
BMW M6 Convertible SMG (06 - 10) vs. BMW 640i Convertible Automatic (11 - 13)
€ 123,200
€ 83,900
€ 123,200
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 dimensions of these vehicles differ a little. The M6 Cabrio is 0.9 inches shorter, 1.5 inches narrower and 0.5 inches taller than the 640i Cabrio.
M6 Cabrio
640i Cabrio
54.2
73
80.2
53.7
74.6
81.9
73 in
Width
74.6 in
80.2 in
Width Incl. Mirrors
81.9 in
54.2 in
Height
53.7 in
109.5
191.8
112.4
192.7
191.8 in
Length
192.7 in
109.5 in
Wheelbase
112.4 in
Vehicle Weight
M6 Cabrio
640i Cabrio
4420 lb
Curb Weight
4222 lb
5247 lb
Gross Vehicle
Weight
Weight
5049 lb
Weight Difference:
198 lb
4.48 %
General
M6 Cabrio
640i Cabrio
E64
Generation
F12
Convertible
Car Body Style
Convertible
Premium Unleaded
Fuel Type
Premium Unleaded
Rear-wheel drive
Drivetrain
Rear-wheel drive
7-speed automated manual transmission (AMT)
Transmission
8-speed automatic transmission
Engine
M6 Cabrio
640i Cabrio
V10 gasoline engine (naturally aspirated engine)
Engine Type
Straight-six gasoline engine with turbocharger
BMW S85
Engine Series
BMW N55
S85-B50
Engine Code
N55-B30
4
Valves
4
10
Cylinders
6
5 L / 245 cu in
Displacement
3 L / 147 cu in
500 hp
at 7750 rpm
Power
316 hp
at 5800 rpm
M6 Cabrio
500 hp
316 hp
640i Cabrio
384 lb‑ft
at 6100 rpm
Max. Torque
332 lb‑ft
at 1300 rpm
M6 Cabrio
384 lb‑ft
332 lb‑ft
640i Cabrio
Performance
M6 Cabrio
640i Cabrio
155 mph
Maximum Speed
155 mph
4.8 sec
Acceleration 0 to 62 mph
5.7 sec
62 mph
62
mph
mph
220 ft
0.000 sec
M6 Cabrio
62 mph
62
mph
mph
259 ft
0.000 sec
640i Cabrio
▶ REPLAY
8.84 lb/hp
Weight-to-Power Ratio
13.36 lb/hp
M6 Cabrio
8.84 lb/hp
13.36 lb/hp
640i Cabrio
Fuel Economy / Emissions
M6 Cabrio
640i Cabrio
Fuel Economy
16 mpg
combined
30 mpg
M6 Cabrio
16 mpg
30 mpg
640i Cabrio
11 mpg
city
22 mpg
No data
highway
No data
18.5 gal
Fuel Tank Capacity
18.5 gal
296 mi
Range
557 mi
M6 Cabrio
296 mi
557 mi
640i Cabrio
Environmental Impact
278.4 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
278.4 kWh
147.7 kWh
640i Cabrio
Euro 4
Emission Standard
Euro 5
566 g/mi (NEFZ)
CO2 Emissions
291 g/mi (NEFZ)
Practical Convenience
M6 Cabrio
640i Cabrio
2
Doors
2
4
No. of Seats
4
827 lb
Maximum Payload
827 lb
9.9 cu ft
Trunk Volume
9.9 cu ft
No data
Cargo Volume (Seats Down)
No data
