The Comparative Analysis :
BMW 650i Convertible Sport-Automatic (07 - 10) vs. BMW 640i Convertible xDrive Steptronic (13 - 14)
€ 91,600

€ 87,300

€ 91,600
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 87,300
ⓘ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 2.9 inches shorter, 1.5 inches narrower and 0.4 inches taller than the 640i Cabrio.
650i Cabrio
640i Cabrio
54.1
73
80.2
53.7
74.6
81.9
73 in
Width
74.6 in
80.2 in
Width Incl. Mirrors
81.9 in
54.1 in
Height
53.7 in
109.4
189.8
112.4
192.7
189.8 in
Length
192.7 in
109.4 in
Wheelbase
112.4 in
Vehicle Weight
650i Cabrio
640i Cabrio
4266 lb
Curb Weight
4376 lb
4982 lb
Gross Vehicle
Weight
Weight
5291 lb

Weight Difference:
110 lb
2.51 %

General
650i Cabrio
640i Cabrio
E64
Generation
F12
Convertible
Car Body Style
Convertible
Premium Unleaded
Fuel Type
Premium Unleaded

Rear-wheel drive
Drivetrain
Permanent all-wheel drive (AWD)

6-speed automatic transmission
Transmission
8-speed automatic transmission
Engine
650i Cabrio
640i Cabrio
V8 gasoline engine (naturally aspirated engine)
Engine Type
Straight-six gasoline engine with turbocharger
BMW N62
Engine Series
BMW N55
N62-B48
Engine Code
N55-B30

4
Valves
4
8
Cylinders
6
4.8 L / 235 cu in
Displacement
3 L / 147 cu in
362 hp
at 6300 rpm
Power
316 hp
at 5800 rpm
650i Cabrio
362 hp
316 hp
640i Cabrio
361 lb‑ft
at 3400 rpm
Max. Torque
332 lb‑ft
at 1300 rpm
650i Cabrio
361 lb‑ft
332 lb‑ft
640i Cabrio
Performance
650i Cabrio
640i Cabrio
155 mph
Maximum Speed
155 mph
5.6 sec
Acceleration 0 to 62 mph
5.4 sec
62 mph
62
mph
mph
256 ft
0.000 sec

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

640i Cabrio
▶ REPLAY
11.78 lb/hp
Weight-to-Power Ratio
13.85 lb/hp
650i Cabrio
11.78 lb/hp
13.85 lb/hp
640i Cabrio
Fuel Economy / Emissions
650i Cabrio
640i Cabrio
Fuel Economy
22 mpg
combined
29 mpg
650i Cabrio
22 mpg
29 mpg
640i Cabrio
14 mpg
city
21 mpg
No data
highway
No data
18.5 gal
Fuel Tank Capacity
18.5 gal
399 mi
Range
531 mi
650i Cabrio
399 mi
531 mi
640i 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).
155.3 kWh
650i Cabrio
206.5 kWh
155.3 kWh
640i Cabrio
Euro 4
Emission Standard
Euro 6b (NEFZ)
415 g/mi (NEFZ)
CO2 Emissions
309 g/mi (NEFZ)
Practical Convenience
650i Cabrio
640i Cabrio
2
Doors
2
4
No. of Seats
4
717 lb
Maximum Payload
915 lb
9.9 cu ft
Trunk Volume
9.9 cu ft








No data
Cargo Volume (Seats Down)
No data