The Comparative Analysis :
ALPINA B4 S Bi-Turbo Convertible Edition 99 Switch-Tronic (18 - 19) vs. ALPINA B3 S Bi-Turbo Convertible Switch-Tronic (10 - 13)
€ 96,100

€ 70,600

€ 96,100
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 70,600
ⓘ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 B4 S Bi-Turbo Cabrio is 0.7 inches longer, 1.7 inches wider and 0.2 inches lower than the B3 S Bi-Turbo Convertible.
B4 S Bi-Turbo Cabrio
B3 S Bi-Turbo Convertible
54.3
71.9
79.7
54.5
70.2
78
71.9 in
Width
70.2 in
79.7 in
Width Incl. Mirrors
78 in
54.3 in
Height
54.5 in
110.6
182.7
108.7
182
182.7 in
Length
182 in
110.6 in
Wheelbase
108.7 in
Vehicle Weight
B4 S Bi-Turbo Cabrio
B3 S Bi-Turbo Convertible
4222 lb
Curb Weight
4068 lb
5071 lb
Gross Vehicle
Weight
Weight
4806 lb

Weight Difference:
154 lb
3.65 %

General
B4 S Bi-Turbo Cabrio
B3 S 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
B4 S Bi-Turbo Cabrio
B3 S Bi-Turbo Convertible
Straight-six gasoline engine with two turbochargers (biturbo)
Engine Type
Straight-six gasoline engine with two turbochargers (biturbo)
N55-B30
Engine Code
N54-K30
4
Valves
4
6
Cylinders
6
3 L / 147 cu in
Displacement
3 L / 147 cu in
446 hp
at 5500 rpm
Power
395 hp
at 6000 rpm
B4 S Bi-Turbo Cabrio
446 hp
395 hp
B3 S Bi-Turbo Convertible
502 lb‑ft
at 3000 rpm
Max. Torque
398 lb‑ft
at 4500 rpm
B4 S Bi-Turbo Cabrio
502 lb‑ft
398 lb‑ft
B3 S Bi-Turbo Convertible
Performance
B4 S Bi-Turbo Cabrio
B3 S Bi-Turbo Convertible
189 mph
Maximum Speed
185 mph
4.3 sec
Acceleration 0 to 62 mph
4.9 sec
62 mph
62
mph
mph
197 ft
0.000 sec

B4 S Bi-Turbo Cabrio
62 mph
62
mph
mph
223 ft
0.000 sec

B3 S Bi-Turbo Convertible
▶ REPLAY
9.47 lb/hp
Weight-to-Power Ratio
10.3 lb/hp
B4 S Bi-Turbo Cabrio
9.47 lb/hp
10.3 lb/hp
B3 S Bi-Turbo Convertible
Fuel Economy / Emissions
B4 S Bi-Turbo Cabrio
B3 S Bi-Turbo Convertible
Fuel Economy
26 mpg
combined
24 mpg
B4 S Bi-Turbo Cabrio
26 mpg
24 mpg
B3 S Bi-Turbo Convertible
19 mpg
city
17 mpg
No data
highway
No data
15.9 gal
Fuel Tank Capacity
16.6 gal
409 mi
Range
403 mi
B4 S Bi-Turbo Cabrio
409 mi
403 mi
B3 S Bi-Turbo Convertible
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).
183.8 kWh
B4 S Bi-Turbo Cabrio
172.4 kWh
183.8 kWh
B3 S Bi-Turbo Convertible
Euro 6d-TEMP-EVAP (WLTP)
Emission Standard
Euro 5
333 g/mi (NEFZ)
CO2 Emissions
362 g/mi (NEFZ)
Practical Convenience
B4 S Bi-Turbo Cabrio
B3 S Bi-Turbo Convertible
2
Doors
2
4
No. of Seats
4
849 lb
Maximum Payload
739 lb
10.5 cu ft
Trunk Volume
9.9 cu ft









No data
Cargo Volume (Seats Down)
No data