The Comparative Analysis :

BMW 840i Convertible xDrive Steptronic (19 - ..) vs. ALPINA B6 Bi-Turbo Convertible Switch-Tronic (15 - 18)

€ 105,800
BMW 840i Convertible xDrive Steptronic (19 - ..) BMW 840i Cabrio
€ 137,200
 ALPINA B6 Bi-Turbo Convertible Switch-Tronic (15 - 18) ALPINA B6 Bi-Turbo Convertible
€ 105,800
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 137,200

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

Vehicle Dimensions

The dimensions of these vehicles differ a little. The BMW 840i Cabrio is 2 inches shorter, 0.3 inches wider and 1.3 inches lower than the ALPINA B6 Bi-Turbo Convertible.
BMW 840i Cabrio
ALPINA B6 Bi-Turbo Convertible
52.7
Blueprint BMW 840i Convertible xDrive Steptronic (19 - ..)
74.9
84.1
54.1
Blueprint ALPINA B6 Bi-Turbo Convertible Switch-Tronic (15 - 18)
74.6
82.4
74.9 in
Width
74.6 in
84.1 in
Width Incl. Mirrors
82.4 in
52.7 in
Height
54.1 in
Blueprint BMW 840i Convertible xDrive Steptronic (19 - ..)
111.1
190.7
Blueprint ALPINA B6 Bi-Turbo Convertible Switch-Tronic (15 - 18)
112.4
192.7
190.7 in
Length
192.7 in
111.1 in
Wheelbase
112.4 in

Vehicle Weight

BMW 840i Cabrio
ALPINA B6 Bi-Turbo Convertible
4310 lb
Curb Weight
4619 lb
5291 lb
Gross Vehicle
Weight
5357 lb
BMW 840i Convertible xDrive Steptronic (19 - ..)
Weight Difference:
309 lb
6.69 %
ALPINA B6 Bi-Turbo Convertible Switch-Tronic (15 - 18)

General

BMW 840i Cabrio
ALPINA B6 Bi-Turbo Convertible
G14
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

BMW 840i Cabrio
ALPINA B6 Bi-Turbo Convertible
Straight-six gasoline engine with tur­bo­charger
Engine Type
V8 gasoline engine with two tur­bo­chargers (bi­turbo)
BMW B58
Engine Series
B58-B30
Engine Code
N63-B44
4
Valves
4
6
Cylinders
8
3 L / 147 cu in
Displacement
4.4 L / 215 cu in
335 hp
at 5000 rpm
Power
592 hp
at 6000 rpm
BMW 840i Cabrio
335 hp
592 hp
ALPINA B6 Bi-Turbo Convertible
369 lb‑ft
at 1600 rpm
Max. Torque
590 lb‑ft
at 3500 rpm
BMW 840i Cabrio
369 lb‑ft
590 lb‑ft
ALPINA B6 Bi-Turbo Convertible

Performance

BMW 840i Cabrio
ALPINA B6 Bi-Turbo Convertible
155 mph
Maximum Speed
203 mph
4.9 sec
Acceleration 0 to 62 mph
4.2 sec
62 mph 62
mph

223 ft
0.000 sec

BMW 840i Cabrio

62 mph 62
mph

190 ft
0.000 sec

ALPINA B6 Bi-Turbo Convertible

▶ REPLAY
12.87 lb/hp
Weight-to-Power Ratio
7.8 lb/hp
BMW 840i Cabrio
12.87 lb/hp
7.8 lb/hp
ALPINA B6 Bi-Turbo Convertible

Fuel Economy / Emissions

BMW 840i Cabrio
ALPINA B6 Bi-Turbo Convertible
Fuel Economy
31 mpg
combined
25 mpg
BMW 840i Cabrio
31 mpg
25 mpg
ALPINA B6 Bi-Turbo Convertible
24 mpg
city
18 mpg
No data
highway
No data
Kraftstoffanzeige
18 gal
Fuel Tank Capacity
18.5 gal
Kraftstoffanzeige
549 mi
Range
453 mi
BMW 840i Cabrio
549 mi
453 mi
ALPINA B6 Bi-Turbo Convertible
Environmental Impact
145.8 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).
181.9 kWh
BMW 840i Cabrio
145.8 kWh
181.9 kWh
ALPINA B6 Bi-Turbo Convertible
Euro 6d-TEMP-EVAP-ISC (WLTP)
Emission Standard
Euro 6b (NEFZ)
330 g/mi (WLTP)
CO2 Emissions
360 g/mi (NEFZ)

Practical Convenience

BMW 840i Cabrio
ALPINA B6 Bi-Turbo Convertible
2
Doors
2
4
No. of Seats
4
981 lb
Maximum Payload
739 lb
9.9 cu ft
Trunk Volume
9.9 cu ft
No data
Cargo Volume (Seats Down)
No data