The Comparative Analysis :
BMW 320d Convertible DPF Automatic (08 - 08) vs. ALPINA D4 Bi-Turbo Convertible Switch-Tronic (17 - 18)
€ 46,100

€ 69,500

€ 46,100
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 69,500
ⓘ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 BMW 320d Convertible DPF is 2.4 inches shorter, 1.7 inches narrower and 0.2 inches taller than the ALPINA D4 Bi-Turbo Cabrio.
BMW 320d Convertible DPF
ALPINA D4 Bi-Turbo Cabrio
54.5
70.2
78.1
54.3
71.9
79.7
70.2 in
Width
71.9 in
78.1 in
Width Incl. Mirrors
79.7 in
54.5 in
Height
54.3 in
108.7
180.3
110.6
182.7
180.3 in
Length
182.7 in
108.7 in
Wheelbase
110.6 in
Vehicle Weight
BMW 320d Convertible DPF
ALPINA D4 Bi-Turbo Cabrio
3847 lb
Curb Weight
4167 lb
4630 lb
Gross Vehicle
Weight
Weight
4993 lb

Weight Difference:
320 lb
7.68 %

General
BMW 320d Convertible DPF
ALPINA D4 Bi-Turbo Cabrio
E93
Generation
F33
Convertible
Car Body Style
Convertible
Diesel
Fuel Type
Diesel

Rear-wheel drive
Drivetrain
Rear-wheel drive

6-speed automatic transmission
Transmission
8-speed automatic transmission
Engine
BMW 320d Convertible DPF
ALPINA D4 Bi-Turbo Cabrio
Straight-four diesel engine with turbocharger
Engine Type
Straight-six diesel engine with two turbochargers (biturbo)
BMW N47
Engine Series
N47-D20
Engine Code
N57-D30

4
Valves
4
4
Cylinders
6
2 L / 98 cu in
Displacement
3 L / 147 cu in
175 hp
at 4000 rpm
Power
345 hp
at 4000 rpm
BMW 320d Convertible DPF
175 hp
345 hp
ALPINA D4 Bi-Turbo Cabrio
258 lb‑ft
at 2000 rpm
Max. Torque
516 lb‑ft
at 1500 rpm
BMW 320d Convertible DPF
258 lb‑ft
516 lb‑ft
ALPINA D4 Bi-Turbo Cabrio
Performance
BMW 320d Convertible DPF
ALPINA D4 Bi-Turbo Cabrio
139 mph
Maximum Speed
171 mph
8.7 sec
Acceleration 0 to 62 mph
5 sec
62 mph
62
mph
mph
397 ft
0.000 sec

BMW 320d Convertible DPF
62 mph
62
mph
mph
226 ft
0.000 sec

ALPINA D4 Bi-Turbo Cabrio
▶ REPLAY
21.98 lb/hp
Weight-to-Power Ratio
12.08 lb/hp
BMW 320d Convertible DPF
21.98 lb/hp
12.08 lb/hp
ALPINA D4 Bi-Turbo Cabrio
Fuel Economy / Emissions
BMW 320d Convertible DPF
ALPINA D4 Bi-Turbo Cabrio
Fuel Economy
41 mpg
combined
40 mpg
BMW 320d Convertible DPF
41 mpg
40 mpg
ALPINA D4 Bi-Turbo Cabrio
31 mpg
city
36 mpg
No data
highway
No data
16.1 gal
Fuel Tank Capacity
15.9 gal
654 mi
Range
632 mi
BMW 320d Convertible DPF
654 mi
632 mi
ALPINA D4 Bi-Turbo Cabrio
Environmental Impact
119.3 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).
121.3 kWh
BMW 320d Convertible DPF
119.3 kWh
121.3 kWh
ALPINA D4 Bi-Turbo Cabrio
Euro 4
Emission Standard
Euro 6b (NEFZ)
246 g/mi (NEFZ)
CO2 Emissions
249 g/mi (NEFZ)
Practical Convenience
BMW 320d Convertible DPF
ALPINA D4 Bi-Turbo Cabrio
2
Doors
2
4
No. of Seats
4
783 lb
Maximum Payload
827 lb
9.9 cu ft
Trunk Volume
10.5 cu ft









No data
Cargo Volume (Seats Down)
No data