The Comparative Analysis :
ALPINA B4 S Bi-Turbo Convertible Edition 99 Switch-Tronic (18 - 19) vs. BMW 320d Convertible DPF Automatic (08 - 08)
€ 96,100

€ 46,100

€ 96,100
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 46,100
ⓘ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. The ALPINA B4 S Bi-Turbo Cabrio is 2.4 inches longer, 1.7 inches wider and 0.2 inches lower than the BMW 320d Convertible DPF.
ALPINA B4 S Bi-Turbo Cabrio
BMW 320d Convertible DPF
54.3
71.9
79.7
54.5
70.2
78.1
71.9 in
Width
70.2 in
79.7 in
Width Incl. Mirrors
78.1 in
54.3 in
Height
54.5 in
110.6
182.7
108.7
180.3
182.7 in
Length
180.3 in
110.6 in
Wheelbase
108.7 in
Vehicle Weight
ALPINA B4 S Bi-Turbo Cabrio
BMW 320d Convertible DPF
4222 lb
Curb Weight
3847 lb
5071 lb
Gross Vehicle
Weight
Weight
4630 lb

Weight Difference:
375 lb
8.88 %

General
ALPINA B4 S Bi-Turbo Cabrio
BMW 320d Convertible DPF
F33
Generation
E93
Convertible
Car Body Style
Convertible
Premium Unleaded
Fuel Type
Diesel

Rear-wheel drive
Drivetrain
Rear-wheel drive

8-speed automatic transmission
Transmission
6-speed automatic transmission
Engine
ALPINA B4 S Bi-Turbo Cabrio
BMW 320d Convertible DPF
Straight-six gasoline engine with two turbochargers (biturbo)
Engine Type
Straight-four diesel engine with turbocharger
Engine Series
BMW N47
N55-B30
Engine Code
N47-D20

4
Valves
4
6
Cylinders
4
3 L / 147 cu in
Displacement
2 L / 98 cu in
446 hp
at 5500 rpm
Power
175 hp
at 4000 rpm
ALPINA B4 S Bi-Turbo Cabrio
446 hp
175 hp
BMW 320d Convertible DPF
502 lb‑ft
at 3000 rpm
Max. Torque
258 lb‑ft
at 2000 rpm
ALPINA B4 S Bi-Turbo Cabrio
502 lb‑ft
258 lb‑ft
BMW 320d Convertible DPF
Performance
ALPINA B4 S Bi-Turbo Cabrio
BMW 320d Convertible DPF
189 mph
Maximum Speed
139 mph
4.3 sec
Acceleration 0 to 62 mph
8.7 sec
62 mph
62
mph
mph
197 ft
0.000 sec

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

BMW 320d Convertible DPF
▶ REPLAY
9.47 lb/hp
Weight-to-Power Ratio
21.98 lb/hp
ALPINA B4 S Bi-Turbo Cabrio
9.47 lb/hp
21.98 lb/hp
BMW 320d Convertible DPF
Fuel Economy / Emissions
ALPINA B4 S Bi-Turbo Cabrio
BMW 320d Convertible DPF
Fuel Economy
26 mpg
combined
41 mpg
ALPINA B4 S Bi-Turbo Cabrio
26 mpg
41 mpg
BMW 320d Convertible DPF
19 mpg
city
31 mpg
No data
highway
No data
15.9 gal
Fuel Tank Capacity
16.1 gal
409 mi
Range
654 mi
ALPINA B4 S Bi-Turbo Cabrio
409 mi
654 mi
BMW 320d Convertible DPF
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).
119.3 kWh
ALPINA B4 S Bi-Turbo Cabrio
172.4 kWh
119.3 kWh
BMW 320d Convertible DPF
Euro 6d-TEMP-EVAP (WLTP)
Emission Standard
Euro 4
333 g/mi (NEFZ)
CO2 Emissions
246 g/mi (NEFZ)
Practical Convenience
ALPINA B4 S Bi-Turbo Cabrio
BMW 320d Convertible DPF
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