The Comparative Analysis :

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

€ 106,700
BMW 650i Convertible xDrive Steptronic (15 - 18) 650i Cabrio
€ 95,100
 BMW 640i Convertible xDrive Steptronic (15 - 18) 640i Cabrio
€ 106,700
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 95,100

ⓘ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 Steptronic (15 - 18)
74.6
81.9
53.7
Blueprint BMW 640i Convertible xDrive 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 Steptronic (15 - 18)
112.4
192.7
Blueprint BMW 640i Convertible xDrive 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
4332 lb
5467 lb
Gross Vehicle
Weight
5269 lb
BMW 650i Convertible xDrive Steptronic (15 - 18)
Weight Difference:
198 lb
4.37 %
BMW 640i Convertible xDrive 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
Permanent all-wheel drive (AWD)
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
444 hp
at 5500 rpm
Power
316 hp
at 5800 rpm
650i Cabrio
444 hp
316 hp
640i Cabrio
479 lb‑ft
at 2000 rpm
Max. Torque
332 lb‑ft
at 1300 rpm
650i Cabrio
479 lb‑ft
332 lb‑ft
640i Cabrio

Performance

650i Cabrio
640i Cabrio
155 mph
Maximum Speed
155 mph
4.5 sec
Acceleration 0 to 62 mph
5.4 sec
62 mph 62
mph

207 ft
0.000 sec

650i Cabrio

62 mph 62
mph

246 ft
0.000 sec

640i Cabrio

▶ REPLAY
10.2 lb/hp
Weight-to-Power Ratio
13.71 lb/hp
650i Cabrio
10.2 lb/hp
13.71 lb/hp
640i Cabrio

Fuel Economy / Emissions

650i Cabrio
640i Cabrio
Fuel Economy
25 mpg
combined
29 mpg
650i Cabrio
25 mpg
29 mpg
640i Cabrio
18 mpg
city
21 mpg
No data
highway
No data
Kraftstoffanzeige
18.5 gal
Fuel Tank Capacity
18.5 gal
Kraftstoffanzeige
468 mi
Range
531 mi
650i Cabrio
468 mi
531 mi
640i Cabrio
Environmental Impact
176.2 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).
155.3 kWh
650i Cabrio
176.2 kWh
155.3 kWh
640i Cabrio
Euro 6b (NEFZ)
Emission Standard
Euro 6b (NEFZ)
349 g/mi (NEFZ)
CO2 Emissions
307 g/mi (NEFZ)

Practical Convenience

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