The Comparative Analysis :
BMW 650i Convertible Sport-Automatic (07 - 10) vs. BMW M6 Convertible M DKG (12 - 14)
€ 91,600

€ 131,400

€ 91,600
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 131,400
ⓘ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 650i Cabrio is 3.1 inches shorter, 1.7 inches narrower and 0.1 inches taller than the M6 Cabrio.
650i Cabrio
M6 Cabrio
54.1
73
80.2
54
74.8
82.9
73 in
Width
74.8 in
80.2 in
Width Incl. Mirrors
82.9 in
54.1 in
Height
54 in
109.4
189.8
112.2
192.8
189.8 in
Length
192.8 in
109.4 in
Wheelbase
112.2 in
Vehicle Weight
650i Cabrio
M6 Cabrio
4266 lb
Curb Weight
4530 lb
4982 lb
Gross Vehicle
Weight
Weight
5313 lb

Weight Difference:
265 lb
5.85 %

General
650i Cabrio
M6 Cabrio
E64
Generation
F12
Convertible
Car Body Style
Convertible
Premium Unleaded
Fuel Type
Premium Unleaded

Rear-wheel drive
Drivetrain
Rear-wheel drive

6-speed automatic transmission
Transmission
7-speed dual clutch transmission
Engine
650i Cabrio
M6 Cabrio
V8 gasoline engine (naturally aspirated engine)
Engine Type
V8 gasoline engine with two turbochargers (biturbo)
BMW N62
Engine Series
BMW S63
N62-B48
Engine Code
S63-B44
4
Valves
4
8
Cylinders
8
4.8 L / 235 cu in
Displacement
4.4 L / 215 cu in
362 hp
at 6300 rpm
Power
552 hp
at 6000 rpm
650i Cabrio
362 hp
552 hp
M6 Cabrio
361 lb‑ft
at 3400 rpm
Max. Torque
502 lb‑ft
at 1500 rpm
650i Cabrio
361 lb‑ft
502 lb‑ft
M6 Cabrio
Performance
650i Cabrio
M6 Cabrio
155 mph
Maximum Speed
155 mph
5.6 sec
Acceleration 0 to 62 mph
4.3 sec
62 mph
62
mph
mph
256 ft
0.000 sec

650i Cabrio
62 mph
62
mph
mph
197 ft
0.000 sec

M6 Cabrio
▶ REPLAY
11.78 lb/hp
Weight-to-Power Ratio
8.21 lb/hp
650i Cabrio
11.78 lb/hp
8.21 lb/hp
M6 Cabrio
Fuel Economy / Emissions
650i Cabrio
M6 Cabrio
Fuel Economy
22 mpg
combined
23 mpg
650i Cabrio
22 mpg
23 mpg
M6 Cabrio
14 mpg
city
16 mpg
No data
highway
No data
18.5 gal
Fuel Tank Capacity
21.1 gal
399 mi
Range
483 mi
650i Cabrio
399 mi
483 mi
M6 Cabrio
Environmental Impact
206.5 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).
195.2 kWh
650i Cabrio
206.5 kWh
195.2 kWh
M6 Cabrio
Euro 4
Emission Standard
Euro 5
415 g/mi (NEFZ)
CO2 Emissions
385 g/mi (NEFZ)
Practical Convenience
650i Cabrio
M6 Cabrio
2
Doors
2
4
No. of Seats
4
717 lb
Maximum Payload
783 lb
9.9 cu ft
Trunk Volume
9.9 cu ft








No data
Cargo Volume (Seats Down)
No data