The Comparative Analysis :
BMW 320i Cabrio (10 - 14) vs. ALPINA B4 S Bi-Turbo Cabrio Switch-Tronic (18 - 19)
€ 41,500

€ 81,400

€ 41,500
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 81,400
ⓘ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 BMW 320i Cabrio is 2.8 cm shorter, 4.3 cm narrower and 0.4 cm taller than the ALPINA B4 S Bi-Turbo Cabrio.
BMW 320i Cabrio
ALPINA B4 S Bi-Turbo Cabrio
1384
1782
1985
1380
1825
2025
1782 mm
Width
1825 mm
1985 mm
Width Incl. Mirrors
2025 mm
1384 mm
Height
1380 mm
2760
4612
2810
4640
4612 mm
Length
4640 mm
2760 mm
Wheelbase
2810 mm
Vehicle Weight
BMW 320i Cabrio
ALPINA B4 S Bi-Turbo Cabrio
1670 kg
Kerb Weight
1915 kg
2025 kg
Gross Vehicle
Weight
Weight
2300 kg

Weight Difference:
245 kg
12.79 %

General
BMW 320i Cabrio
ALPINA B4 S Bi-Turbo Cabrio
E93
Generation
F33
Convertible
Car Body Style
Convertible
Super Unleaded (98 RON)
Fuel Type
Super Unleaded (98 RON)

Rear-wheel drive
Drive
Rear-wheel drive

6-speed manual transmission
Transmission
8-speed automatic transmission
Engine
BMW 320i Cabrio
ALPINA B4 S Bi-Turbo Cabrio
Straight-four petrol engine (naturally aspirated engine)
Engine Type
Straight-six petrol engine with two turbochargers (biturbo)
BMW N43
Engine Series
N43-B20
Engine Code
N55-B30

4
Valves
4
4
Cylinders
6
1995 CC
Engine Capacity
2979 CC
168 bhp
at 6700 rpm
Power
434 bhp
at 5500 rpm
BMW 320i Cabrio
168 bhp
434 bhp
ALPINA B4 S Bi-Turbo Cabrio
210 NM
at 4250 rpm
Max. Torque
660 NM
at 3000 rpm
BMW 320i Cabrio
210 NM
660 NM
ALPINA B4 S Bi-Turbo Cabrio
Performance
BMW 320i Cabrio
ALPINA B4 S Bi-Turbo Cabrio
142 mph
Maximum Speed
189 mph
9.1 sec
Acceleration 0 to 62 mph
4.3 sec
62 mph
62
mph
mph
126 m
0.000 sec

BMW 320i Cabrio
62 mph
62
mph
mph
60 m
0.000 sec

ALPINA B4 S Bi-Turbo Cabrio
▶ REPLAY
9.94 kg/bhp
Weight-to-Power Ratio
4.41 kg/bhp
BMW 320i Cabrio
9.94 kg/bhp
4.41 kg/bhp
ALPINA B4 S Bi-Turbo Cabrio
Fuel Economy / Emissions
BMW 320i Cabrio
ALPINA B4 S Bi-Turbo Cabrio
Fuel Economy
42 mpg
combined
31 mpg
BMW 320i Cabrio
42 mpg
31 mpg
ALPINA B4 S Bi-Turbo Cabrio
32 mpg
city
23 mpg
No data
motorway
No data
63 L
Fuel Tank Capacity
60 L
575 mi
Range
409 mi
BMW 320i Cabrio
575 mi
409 mi
ALPINA B4 S Bi-Turbo Cabrio
Environmental Impact
128.7 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).
172.4 kWh
BMW 320i Cabrio
128.7 kWh
172.4 kWh
ALPINA B4 S Bi-Turbo Cabrio
Euro 5
Emission Standard
Euro 6d-TEMP (WLTP)
159 g/km (NEFZ)
CO2 Emissions
207 g/km (NEFZ)
Practical Convenience
BMW 320i Cabrio
ALPINA B4 S Bi-Turbo Cabrio
2
Doors
2
4
No. of Seats
4
355 kg
Maximum Payload
385 kg
350 L
Boot Capacity
370 L









No data
Boot Capacity (Seats Down)
No data