The Comparative Analysis :
BMW 430i Convertible Steptronic (16 - 17) vs. ALPINA B3 Bi-Turbo Convertible Switch-Tronic (07 - 10)
€ 52,600

€ 67,800

€ 52,600
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 67,800
ⓘ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. Both cars are the same height, but the BMW 430i Cabrio is 2.3 inches longer and 1.7 inches wider.
BMW 430i Cabrio
ALPINA B3 Bi-Turbo Convertible
54.5
71.9
79.4
54.5
70.2
78
71.9 in
Width
70.2 in
79.4 in
Width Incl. Mirrors
78 in
54.5 in
Height
54.5 in
110.6
182.6
108.7
180.3
182.6 in
Length
180.3 in
110.6 in
Wheelbase
108.7 in
Vehicle Weight
BMW 430i Cabrio
ALPINA B3 Bi-Turbo Convertible
3990 lb
Curb Weight
4068 lb
4839 lb
Gross Vehicle
Weight
Weight
4850 lb

Weight Difference:
77 lb
1.89 %

General
BMW 430i Cabrio
ALPINA B3 Bi-Turbo Convertible
F33
Generation
E93
Convertible
Car Body Style
Convertible
Premium Unleaded
Fuel Type
Premium Unleaded

Rear-wheel drive
Drivetrain
Rear-wheel drive

8-speed automatic transmission
Transmission
6-speed automatic transmission
Engine
BMW 430i Cabrio
ALPINA B3 Bi-Turbo Convertible
Straight-four gasoline engine with turbocharger
Engine Type
Straight-six gasoline engine with two turbochargers (biturbo)
BMW B48
Engine Series
B48-B20
Engine Code
N54-K20

4
Valves
4
4
Cylinders
6
2 L / 98 cu in
Displacement
3 L / 147 cu in
249 hp
at 5200 rpm
Power
355 hp
at 5500 rpm
BMW 430i Cabrio
249 hp
355 hp
ALPINA B3 Bi-Turbo Convertible
258 lb‑ft
at 1450 rpm
Max. Torque
369 lb‑ft
at 3800 rpm
BMW 430i Cabrio
258 lb‑ft
369 lb‑ft
ALPINA B3 Bi-Turbo Convertible
Performance
BMW 430i Cabrio
ALPINA B3 Bi-Turbo Convertible
155 mph
Maximum Speed
174 mph
6.3 sec
Acceleration 0 to 62 mph
5 sec
62 mph
62
mph
mph
289 ft
0.000 sec

BMW 430i Cabrio
62 mph
62
mph
mph
226 ft
0.000 sec

ALPINA B3 Bi-Turbo Convertible
▶ REPLAY
16.02 lb/hp
Weight-to-Power Ratio
11.46 lb/hp
BMW 430i Cabrio
16.02 lb/hp
11.46 lb/hp
ALPINA B3 Bi-Turbo Convertible
Fuel Economy / Emissions
BMW 430i Cabrio
ALPINA B3 Bi-Turbo Convertible
Fuel Economy
40 mpg
combined
24 mpg
BMW 430i Cabrio
40 mpg
24 mpg
ALPINA B3 Bi-Turbo Convertible
31 mpg
city
17 mpg
No data
highway
No data
15.9 gal
Fuel Tank Capacity
16.6 gal
632 mi
Range
403 mi
BMW 430i Cabrio
632 mi
403 mi
ALPINA B3 Bi-Turbo Convertible
Environmental Impact
111.8 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).
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).
183.8 kWh
BMW 430i Cabrio
111.8 kWh
183.8 kWh
ALPINA B3 Bi-Turbo Convertible
Euro 6b (NEFZ)
Emission Standard
Euro 4
222 g/mi (NEFZ)
CO2 Emissions
381 g/mi (NEFZ)
Practical Convenience
BMW 430i Cabrio
ALPINA B3 Bi-Turbo Convertible
2
Doors
2
4
No. of Seats
4
849 lb
Maximum Payload
783 lb
10.5 cu ft
Trunk Volume
9.9 cu ft









No data
Cargo Volume (Seats Down)
No data