The Comparative Analysis :

BMW 430i Convertible Steptronic (17 - ..) vs. ALPINA B4 Bi-Turbo Convertible Switch-Tronic (14 - 17)

€ 55,900
BMW 430i Convertible Steptronic (17 - ..) BMW 430i Cabrio
€ 75,900
 ALPINA B4 Bi-Turbo Convertible Switch-Tronic (14 - 17) ALPINA B4 Bi-Turbo Cabrio
€ 55,900
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 75,900

ⓘ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 BMW 430i Cabrio is 0.1 inches shorter and 0.2 inches taller.
BMW 430i Cabrio
ALPINA B4 Bi-Turbo Cabrio
54.5
Blueprint BMW 430i Convertible Steptronic (17 - ..)
71.9
79.4
54.3
Blueprint ALPINA B4 Bi-Turbo Convertible Switch-Tronic (14 - 17)
71.9
79.7
71.9 in
Width
71.9 in
79.4 in
Width Incl. Mirrors
79.7 in
54.5 in
Height
54.3 in
Blueprint BMW 430i Convertible Steptronic (17 - ..)
110.6
182.6
Blueprint ALPINA B4 Bi-Turbo Convertible Switch-Tronic (14 - 17)
110.6
182.7
182.6 in
Length
182.7 in
110.6 in
Wheelbase
110.6 in

Vehicle Weight

BMW 430i Cabrio
ALPINA B4 Bi-Turbo Cabrio
3990 lb
Curb Weight
4222 lb
4839 lb
Gross Vehicle
Weight
5071 lb
BMW 430i Convertible Steptronic (17 - ..)
Weight Difference:
231 lb
5.47 %
ALPINA B4 Bi-Turbo Convertible Switch-Tronic (14 - 17)

General

BMW 430i Cabrio
ALPINA B4 Bi-Turbo 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

BMW 430i Cabrio
ALPINA B4 Bi-Turbo Cabrio
Straight-four gasoline engine with tur­bo­charger
Engine Type
Straight-six gasoline engine with two tur­bo­chargers (bi­turbo)
BMW B48
Engine Series
B48-B20
Engine Code
N55-R20
4
Valves
4
4
Cylinders
6
2 L / 98 cu in
Displacement
3 L / 147 cu in
249 hp
at 5200 rpm
Power
404 hp
at 5500 rpm
BMW 430i Cabrio
249 hp
404 hp
ALPINA B4 Bi-Turbo Cabrio
258 lb‑ft
at 1450 rpm
Max. Torque
443 lb‑ft
at 3000 rpm
BMW 430i Cabrio
258 lb‑ft
443 lb‑ft
ALPINA B4 Bi-Turbo Cabrio

Performance

BMW 430i Cabrio
ALPINA B4 Bi-Turbo Cabrio
155 mph
Maximum Speed
187 mph
6.3 sec
Acceleration 0 to 62 mph
4.5 sec
62 mph 62
mph

289 ft
0.000 sec

BMW 430i Cabrio

62 mph 62
mph

207 ft
0.000 sec

ALPINA B4 Bi-Turbo Cabrio

▶ REPLAY
16.02 lb/hp
Weight-to-Power Ratio
10.45 lb/hp
BMW 430i Cabrio
16.02 lb/hp
10.45 lb/hp
ALPINA B4 Bi-Turbo Cabrio

Fuel Economy / Emissions

BMW 430i Cabrio
ALPINA B4 Bi-Turbo Cabrio
Fuel Economy
37 mpg
combined
29 mpg
BMW 430i Cabrio
37 mpg
29 mpg
ALPINA B4 Bi-Turbo Cabrio
33 mpg
city
22 mpg
No data
highway
No data
Kraftstoffanzeige
15.9 gal
Fuel Tank Capacity
15.9 gal
Kraftstoffanzeige
592 mi
Range
466 mi
BMW 430i Cabrio
592 mi
466 mi
ALPINA B4 Bi-Turbo Cabrio
Environmental Impact
119.4 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).
151.6 kWh
BMW 430i Cabrio
119.4 kWh
151.6 kWh
ALPINA B4 Bi-Turbo Cabrio
Euro 6d-TEMP-EVAP-ISC (WLTP)
Emission Standard
Euro 6b (NEFZ)
301 g/mi (WLTP)
CO2 Emissions
299 g/mi (NEFZ)

Practical Convenience

BMW 430i Cabrio
ALPINA B4 Bi-Turbo 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