The Comparative Analysis :
ALPINA B4 S Bi-Turbo Convertible Switch-Tronic (18 - 19) vs. BMW 430i Convertible Steptronic (17 - ..)
€ 81,400

€ 55,900

€ 81,400
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 55,900
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
Тhere is barely any difference in dimensions between the two vehicles. Both cars are the same width, but the ALPINA B4 S Bi-Turbo Cabrio is 0.1 inches longer and 0.2 inches lower.
ALPINA B4 S Bi-Turbo Cabrio
BMW 430i Cabrio
54.3
71.9
79.7
54.5
71.9
79.4
71.9 in
Width
71.9 in
79.7 in
Width Incl. Mirrors
79.4 in
54.3 in
Height
54.5 in
110.6
182.7
110.6
182.6
182.7 in
Length
182.6 in
110.6 in
Wheelbase
110.6 in
Vehicle Weight
ALPINA B4 S Bi-Turbo Cabrio
BMW 430i Cabrio
4222 lb
Curb Weight
3990 lb
5071 lb
Gross Vehicle
Weight
Weight
4839 lb

Weight Difference:
231 lb
5.47 %

General
ALPINA B4 S Bi-Turbo Cabrio
BMW 430i Cabrio
F33
Generation
F33
Convertible
Car Body Style
Convertible
Premium Unleaded
Fuel Type
Premium Unleaded

Rear-wheel drive
Drivetrain
Rear-wheel drive

8-speed automatic transmission
Transmission
8-speed automatic transmission
Engine
ALPINA B4 S Bi-Turbo Cabrio
BMW 430i Cabrio
Straight-six gasoline engine with two turbochargers (biturbo)
Engine Type
Straight-four gasoline engine with turbocharger
Engine Series
BMW B48
N55-B30
Engine Code
B48-B20

4
Valves
4
6
Cylinders
4
3 L / 147 cu in
Displacement
2 L / 98 cu in
434 hp
at 5500 rpm
Power
249 hp
at 5200 rpm
ALPINA B4 S Bi-Turbo Cabrio
434 hp
249 hp
BMW 430i Cabrio
487 lb‑ft
at 3000 rpm
Max. Torque
258 lb‑ft
at 1450 rpm
ALPINA B4 S Bi-Turbo Cabrio
487 lb‑ft
258 lb‑ft
BMW 430i Cabrio
Performance
ALPINA B4 S Bi-Turbo Cabrio
BMW 430i Cabrio
189 mph
Maximum Speed
155 mph
4.3 sec
Acceleration 0 to 62 mph
6.3 sec
62 mph
62
mph
mph
197 ft
0.000 sec

ALPINA B4 S Bi-Turbo Cabrio
62 mph
62
mph
mph
289 ft
0.000 sec

BMW 430i Cabrio
▶ REPLAY
9.73 lb/hp
Weight-to-Power Ratio
16.02 lb/hp
ALPINA B4 S Bi-Turbo Cabrio
9.73 lb/hp
16.02 lb/hp
BMW 430i Cabrio
Fuel Economy / Emissions
ALPINA B4 S Bi-Turbo Cabrio
BMW 430i Cabrio
Fuel Economy
26 mpg
combined
37 mpg
ALPINA B4 S Bi-Turbo Cabrio
26 mpg
37 mpg
BMW 430i Cabrio
19 mpg
city
33 mpg
No data
highway
No data
15.9 gal
Fuel Tank Capacity
15.9 gal
409 mi
Range
592 mi
ALPINA B4 S Bi-Turbo Cabrio
409 mi
592 mi
BMW 430i Cabrio
Environmental Impact
172.4 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).
119.4 kWh
ALPINA B4 S Bi-Turbo Cabrio
172.4 kWh
119.4 kWh
BMW 430i Cabrio
Euro 6d-TEMP (WLTP)
Emission Standard
Euro 6d-TEMP-EVAP-ISC (WLTP)
333 g/mi (NEFZ)
CO2 Emissions
301 g/mi (WLTP)
Practical Convenience
ALPINA B4 S Bi-Turbo Cabrio
BMW 430i Cabrio
2
Doors
2
4
No. of Seats
4
849 lb
Maximum Payload
849 lb
10.5 cu ft
Trunk Volume
10.5 cu ft










No data
Cargo Volume (Seats Down)
No data