The Comparative Analysis :
BMW 640i Cabrio Automatic (11 - 13) vs. ALPINA B6 Cabriolet Switch-Tronic (06 - 08)
€ 83,900

€ 129,100

€ 83,900
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 129,100
ⓘ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 BMW 640i Cabrio is 7.4 cm longer, 3.9 cm wider and 0.6 cm lower than the ALPINA B6 Cabriolet.
BMW 640i Cabrio
ALPINA B6 Cabriolet
1365
1894
2081
1371
1855
2055
1894 mm
Width
1855 mm
2081 mm
Width Incl. Mirrors
2055 mm
1365 mm
Height
1371 mm
2855
4894
2780
4820
4894 mm
Length
4820 mm
2855 mm
Wheelbase
2780 mm
Vehicle Weight
BMW 640i Cabrio
ALPINA B6 Cabriolet
1915 kg
Kerb Weight
2005 kg
2290 kg
Gross Vehicle
Weight
Weight
2350 kg

Weight Difference:
90 kg
4.49 %

General
BMW 640i Cabrio
ALPINA B6 Cabriolet
F12
Generation
E64
Convertible
Car Body Style
Convertible
Super Unleaded (98 RON)
Fuel Type
Super Unleaded (98 RON)

Rear-wheel drive
Drive
Rear-wheel drive

8-speed automatic transmission
Transmission
6-speed automatic transmission
Engine
BMW 640i Cabrio
ALPINA B6 Cabriolet
Straight-six petrol engine with turbocharger
Engine Type
V8 petrol engine with centrifugal compressor
BMW N55
Engine Series
N55-B30
Engine Code
N62-B44

4
Valves
4
6
Cylinders
8
2979 CC
Engine Capacity
4398 CC
316 bhp
at 5800 rpm
Power
493 bhp
at 5500 rpm
BMW 640i Cabrio
316 bhp
493 bhp
ALPINA B6 Cabriolet
450 NM
at 1300 rpm
Max. Torque
700 NM
at 4250 rpm
BMW 640i Cabrio
450 NM
700 NM
ALPINA B6 Cabriolet
Performance
BMW 640i Cabrio
ALPINA B6 Cabriolet
155 mph
Maximum Speed
193 mph
5.7 sec
Acceleration 0 to 62 mph
4.9 sec
62 mph
62
mph
mph
79 m
0.000 sec

BMW 640i Cabrio
62 mph
62
mph
mph
68 m
0.000 sec

ALPINA B6 Cabriolet
▶ REPLAY
6.06 kg/bhp
Weight-to-Power Ratio
4.07 kg/bhp
BMW 640i Cabrio
6.06 kg/bhp
4.07 kg/bhp
ALPINA B6 Cabriolet
Fuel Economy / Emissions
BMW 640i Cabrio
ALPINA B6 Cabriolet
Fuel Economy
36 mpg
combined
22 mpg
BMW 640i Cabrio
36 mpg
22 mpg
ALPINA B6 Cabriolet
26 mpg
city
15 mpg
No data
motorway
No data
70 L
Fuel Tank Capacity
70 L
557 mi
Range
340 mi
BMW 640i Cabrio
557 mi
340 mi
ALPINA B6 Cabriolet
Environmental Impact
147.7 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).
242.5 kWh
BMW 640i Cabrio
147.7 kWh
242.5 kWh
ALPINA B6 Cabriolet
Euro 5
Emission Standard
Euro 4
181 g/km (NEFZ)
CO2 Emissions
306 g/km (NEFZ)
Practical Convenience
BMW 640i Cabrio
ALPINA B6 Cabriolet
2
Doors
2
4
No. of Seats
4
375 kg
Maximum Payload
345 kg
350 L
Boot Capacity
300 L








No data
Boot Capacity (Seats Down)
No data