The Comparative Analysis :

BMW 650i Convertible xDrive Automatic (11 - 12) vs. BMW 640i Convertible Steptronic (15 - 18)

€ 97,700
BMW 650i Convertible xDrive Automatic (11 - 12) 650i Cabrio
€ 91,700
 BMW 640i Convertible Steptronic (15 - 18) 640i Cabrio
€ 97,700
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 91,700

ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info

Vehicle Dimensions

The dimensions of the 650i Cabrio and the 640i Cabrio are absolutely identical. Both are 192.7 inches long, 74.6 inches wide and 53.7 inches tall.
650i Cabrio
640i Cabrio
53.7
Blueprint BMW 650i Convertible xDrive Automatic (11 - 12)
74.6
81.9
53.7
Blueprint BMW 640i Convertible Steptronic (15 - 18)
74.6
81.9
74.6 in
Width
74.6 in
81.9 in
Width Incl. Mirrors
81.9 in
53.7 in
Height
53.7 in
Blueprint BMW 650i Convertible xDrive Automatic (11 - 12)
112.4
192.7
Blueprint BMW 640i Convertible Steptronic (15 - 18)
112.4
192.7
192.7 in
Length
192.7 in
112.4 in
Wheelbase
112.4 in

Vehicle Weight

650i Cabrio
640i Cabrio
4530 lb
Curb Weight
4178 lb
5434 lb
Gross Vehicle
Weight
5126 lb
BMW 650i Convertible xDrive Automatic (11 - 12)
Weight Difference:
353 lb
7.79 %
BMW 640i Convertible Steptronic (15 - 18)

General

650i Cabrio
640i Cabrio
F12
Generation
F12
Convertible
Car Body Style
Convertible
Premium Unleaded
Fuel Type
Premium Unleaded
Permanent all-wheel drive (AWD)
Drivetrain
Rear-wheel drive
8-speed automatic transmission
Transmission
8-speed automatic transmission

Engine

650i Cabrio
640i Cabrio
V8 gasoline engine with two tur­bo­chargers (bi­turbo)
Engine Type
Straight-six gasoline engine with tur­bo­charger
BMW N63
Engine Series
BMW N55
N63-B44
Engine Code
N55-B30
4
Valves
4
8
Cylinders
6
4.4 L / 215 cu in
Displacement
3 L / 147 cu in
402 hp
at 5500 rpm
Power
316 hp
at 5800 rpm
650i Cabrio
402 hp
316 hp
640i Cabrio
443 lb‑ft
at 1750 rpm
Max. Torque
332 lb‑ft
at 1300 rpm
650i Cabrio
443 lb‑ft
332 lb‑ft
640i Cabrio

Performance

650i Cabrio
640i Cabrio
155 mph
Maximum Speed
155 mph
4.9 sec
Acceleration 0 to 62 mph
5.5 sec
62 mph 62
mph

223 ft
0.000 sec

650i Cabrio

62 mph 62
mph

249 ft
0.000 sec

640i Cabrio

▶ REPLAY
11.27 lb/hp
Weight-to-Power Ratio
13.22 lb/hp
650i Cabrio
11.27 lb/hp
13.22 lb/hp
640i Cabrio

Fuel Economy / Emissions

650i Cabrio
640i Cabrio
Fuel Economy
21 mpg
combined
31 mpg
650i Cabrio
21 mpg
31 mpg
640i Cabrio
14 mpg
city
22 mpg
No data
highway
No data
Kraftstoffanzeige
18.5 gal
Fuel Tank Capacity
18.5 gal
Kraftstoffanzeige
382 mi
Range
565 mi
650i Cabrio
382 mi
565 mi
640i Cabrio
Environmental Impact
216 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).
145.8 kWh
650i Cabrio
216 kWh
145.8 kWh
640i Cabrio
Euro 5
Emission Standard
Euro 6b (NEFZ)
428 g/mi (NEFZ)
CO2 Emissions
288 g/mi (NEFZ)

Practical Convenience

650i Cabrio
640i Cabrio
2
Doors
2
4
No. of Seats
4
904 lb
Maximum Payload
948 lb
9.9 cu ft
Trunk Volume
9.9 cu ft
No data
Cargo Volume (Seats Down)
No data