The Comparative Analysis :

ALPINA B4 Bi-Turbo Convertible Switch-Tronic (14 - 17) vs. BMW M4 Convertible M DKG (18 - 19)

€ 75,900
ALPINA B4 Bi-Turbo Convertible Switch-Tronic (14 - 17) ALPINA B4 Bi-Turbo Cabrio
€ 89,600
 BMW M4 Convertible M DKG (18 - 19) BMW M4 Cabrio
€ 75,900
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 89,600

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

Vehicle Dimensions

The ALPINA B4 Bi-Turbo Cabrio is a little smaller in every dimension. It's 1.2 inches shorter, 1.8 inches narrower and 0.2 inches lower than the BMW M4 Cabrio.
ALPINA B4 Bi-Turbo Cabrio
BMW M4 Cabrio
54.3
Blueprint ALPINA B4 Bi-Turbo Convertible Switch-Tronic (14 - 17)
71.9
79.7
54.6
Blueprint BMW M4 Convertible M DKG (18 - 19)
73.6
79.3
71.9 in
Width
73.6 in
79.7 in
Width Incl. Mirrors
79.3 in
54.3 in
Height
54.6 in
Blueprint ALPINA B4 Bi-Turbo Convertible Switch-Tronic (14 - 17)
110.6
182.7
Blueprint BMW M4 Convertible M DKG (18 - 19)
110.7
183.9
182.7 in
Length
183.9 in
110.6 in
Wheelbase
110.7 in

Vehicle Weight

ALPINA B4 Bi-Turbo Cabrio
BMW M4 Cabrio
4222 lb
Curb Weight
4167 lb
5071 lb
Gross Vehicle
Weight
4960 lb
ALPINA B4 Bi-Turbo Convertible Switch-Tronic (14 - 17)
Weight Difference:
55 lb
1.3 %
BMW M4 Convertible M DKG (18 - 19)

General

ALPINA B4 Bi-Turbo Cabrio
BMW M4 Cabrio
F33
Generation
F83
Convertible
Car Body Style
Convertible
Premium Unleaded
Fuel Type
Premium Unleaded
Rear-wheel drive
Drivetrain
Rear-wheel drive
8-speed automatic transmission
Transmission
7-speed dual clutch transmission

Engine

ALPINA B4 Bi-Turbo Cabrio
BMW M4 Cabrio
Straight-six gasoline engine with two tur­bo­chargers (bi­turbo)
Engine Type
Straight-six gasoline engine with two tur­bo­chargers (bi­turbo)
Engine Series
BMW S55
N55-R20
Engine Code
S55-B30
4
Valves
4
6
Cylinders
6
3 L / 147 cu in
Displacement
3 L / 147 cu in
404 hp
at 5500 rpm
Power
425 hp
at 5550 rpm
ALPINA B4 Bi-Turbo Cabrio
404 hp
425 hp
BMW M4 Cabrio
443 lb‑ft
at 3000 rpm
Max. Torque
406 lb‑ft
at 2350 rpm
ALPINA B4 Bi-Turbo Cabrio
443 lb‑ft
406 lb‑ft
BMW M4 Cabrio

Performance

ALPINA B4 Bi-Turbo Cabrio
BMW M4 Cabrio
187 mph
Maximum Speed
155 mph
4.5 sec
Acceleration 0 to 62 mph
4.4 sec
62 mph 62
mph

207 ft
0.000 sec

ALPINA B4 Bi-Turbo Cabrio

62 mph 62
mph

200 ft
0.000 sec

BMW M4 Cabrio

▶ REPLAY
10.45 lb/hp
Weight-to-Power Ratio
9.8 lb/hp
ALPINA B4 Bi-Turbo Cabrio
10.45 lb/hp
9.8 lb/hp
BMW M4 Cabrio

Fuel Economy / Emissions

ALPINA B4 Bi-Turbo Cabrio
BMW M4 Cabrio
Fuel Economy
29 mpg
combined
25 mpg
ALPINA B4 Bi-Turbo Cabrio
29 mpg
25 mpg
BMW M4 Cabrio
22 mpg
city
20 mpg
No data
highway
No data
Kraftstoffanzeige
15.9 gal
Fuel Tank Capacity
15.9 gal
Kraftstoffanzeige
466 mi
Range
393 mi
ALPINA B4 Bi-Turbo Cabrio
466 mi
393 mi
BMW M4 Cabrio
Environmental Impact
151.6 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).
179.9 kWh
ALPINA B4 Bi-Turbo Cabrio
151.6 kWh
179.9 kWh
BMW M4 Cabrio
Euro 6b (NEFZ)
Emission Standard
Euro 6d-TEMP-EVAP (WLTP)
299 g/mi (NEFZ)
CO2 Emissions
373 g/mi (WLTP)

Practical Convenience

ALPINA B4 Bi-Turbo Cabrio
BMW M4 Cabrio
2
Doors
2
4
No. of Seats
4
849 lb
Maximum Payload
794 lb
10.5 cu ft
Trunk Volume
10.5 cu ft
No data
Cargo Volume (Seats Down)
No data