The Comparative Analysis :

BMW 640d Convertible Steptronic (11 - 14) vs. ALPINA B6 S Convertible Switch-Tronic (08 - 10)

€ 87,400
BMW 640d Convertible Steptronic (11 - 14) BMW 640d Cabrio
€ 129,100
 ALPINA B6 S Convertible Switch-Tronic (08 - 10) ALPINA B6 S Convertible
€ 87,400
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 640d Cabrio is 2.6 inches longer, 1.5 inches wider and 0.2 inches lower than the ALPINA B6 S Convertible.
BMW 640d Cabrio
ALPINA B6 S Convertible
53.7
Blueprint BMW 640d Convertible Steptronic (11 - 14)
74.6
81.9
54
Blueprint ALPINA B6 S Convertible Switch-Tronic (08 - 10)
73
80.9
74.6 in
Width
73 in
81.9 in
Width Incl. Mirrors
80.9 in
53.7 in
Height
54 in
Blueprint BMW 640d Convertible Steptronic (11 - 14)
112.4
192.7
Blueprint ALPINA B6 S Convertible Switch-Tronic (08 - 10)
109.4
190.1
192.7 in
Length
190.1 in
112.4 in
Wheelbase
109.4 in

Vehicle Weight

BMW 640d Cabrio
ALPINA B6 S Convertible
4266 lb
Curb Weight
4420 lb
5159 lb
Gross Vehicle
Weight
5181 lb
BMW 640d Convertible Steptronic (11 - 14)
Weight Difference:
154 lb
3.48 %
ALPINA B6 S Convertible Switch-Tronic (08 - 10)

General

BMW 640d Cabrio
ALPINA B6 S Convertible
F12
Generation
E64
Convertible
Car Body Style
Convertible
Diesel
Fuel Type
Premium Unleaded
Rear-wheel drive
Drivetrain
Rear-wheel drive
8-speed automatic transmission
Transmission
6-speed automatic transmission

Engine

BMW 640d Cabrio
ALPINA B6 S Convertible
Straight-six diesel engine with two tur­bo­chargers (bi­turbo)
Engine Type
V8 gasoline engine with centri­fugal com­pres­sor
BMW N57
Engine Series
N57-D30
Engine Code
N62-B44
4
Valves
4
6
Cylinders
8
3 L / 147 cu in
Displacement
4.4 L / 215 cu in
309 hp
at 4400 rpm
Power
523 hp
at 5500 rpm
BMW 640d Cabrio
309 hp
523 hp
ALPINA B6 S Convertible
465 lb‑ft
at 1500 rpm
Max. Torque
535 lb‑ft
at 4750 rpm
BMW 640d Cabrio
465 lb‑ft
535 lb‑ft
ALPINA B6 S Convertible

Performance

BMW 640d Cabrio
ALPINA B6 S Convertible
155 mph
Maximum Speed
194 mph
5.6 sec
Acceleration 0 to 62 mph
4.8 sec
62 mph 62
mph

256 ft
0.000 sec

BMW 640d Cabrio

62 mph 62
mph

220 ft
0.000 sec

ALPINA B6 S Convertible

▶ REPLAY
13.81 lb/hp
Weight-to-Power Ratio
8.45 lb/hp
BMW 640d Cabrio
13.81 lb/hp
8.45 lb/hp
ALPINA B6 S Convertible

Fuel Economy / Emissions

BMW 640d Cabrio
ALPINA B6 S Convertible
Fuel Economy
42 mpg
combined
18 mpg
BMW 640d Cabrio
42 mpg
18 mpg
ALPINA B6 S Convertible
35 mpg
city
12 mpg
No data
highway
No data
Kraftstoffanzeige
18.5 gal
Fuel Tank Capacity
18.5 gal
Kraftstoffanzeige
777 mi
Range
340 mi
BMW 640d Cabrio
777 mi
340 mi
ALPINA B6 S Convertible
Environmental Impact
115.2 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).
242.5 kWh
BMW 640d Cabrio
115.2 kWh
242.5 kWh
ALPINA B6 S Convertible
Euro 5
Emission Standard
Euro 4
237 g/mi (NEFZ)
CO2 Emissions
492 g/mi (NEFZ)

Practical Convenience

BMW 640d Cabrio
ALPINA B6 S Convertible
2
Doors
2
4
No. of Seats
4
893 lb
Maximum Payload
761 lb
9.9 cu ft
Trunk Volume
8.5 cu ft
No data
Cargo Volume (Seats Down)
No data