The Comparative Analysis :
BMW 428i Convertible xDrive Steptronic (14 - 15) vs. BMW 320d Convertible DPF Automatic (08 - 08)
€ 52,900

€ 46,100

€ 52,900
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 428i Cabrio is slightly bigger in every dimension. It's 2.3 inches longer, 1.7 inches wider and 0.6 inches taller than the 320d Convertible DPF.
428i Cabrio
320d Convertible DPF
55.1
71.9
79.4
54.5
70.2
78.1
71.9 in
Width
70.2 in
79.4 in
Width Incl. Mirrors
78.1 in
55.1 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
428i Cabrio
320d Convertible DPF
4068 lb
Curb Weight
3847 lb
4894 lb
Gross Vehicle
Weight
Weight
4630 lb

Weight Difference:
220 lb
5.41 %

General
428i Cabrio
320d Convertible DPF
F33
Generation
E93
Convertible
Car Body Style
Convertible
Premium Unleaded
Fuel Type
Diesel

Permanent all-wheel drive (AWD)
Drivetrain
Rear-wheel drive

8-speed automatic transmission
Transmission
6-speed automatic transmission
Engine
428i Cabrio
320d Convertible DPF
Straight-four gasoline engine with turbocharger
Engine Type
Straight-four diesel engine with turbocharger
BMW N20
Engine Series
BMW N47
N20-B20
Engine Code
N47-D20


4
Valves
4
4
Cylinders
4
2 L / 98 cu in
Displacement
2 L / 98 cu in
242 hp
at 5000 rpm
Power
175 hp
at 4000 rpm
428i Cabrio
242 hp
175 hp
320d Convertible DPF
258 lb‑ft
at 1250 rpm
Max. Torque
258 lb‑ft
at 2000 rpm
428i Cabrio
258 lb‑ft
258 lb‑ft
320d Convertible DPF
Performance
428i Cabrio
320d Convertible DPF
155 mph
Maximum Speed
139 mph
6.5 sec
Acceleration 0 to 62 mph
8.7 sec
62 mph
62
mph
mph
295 ft
0.000 sec

428i Cabrio
62 mph
62
mph
mph
397 ft
0.000 sec

320d Convertible DPF
▶ REPLAY
16.81 lb/hp
Weight-to-Power Ratio
21.98 lb/hp
428i Cabrio
16.81 lb/hp
21.98 lb/hp
320d Convertible DPF
Fuel Economy / Emissions
428i Cabrio
320d Convertible DPF
Fuel Economy
34 mpg
combined
41 mpg
428i Cabrio
34 mpg
41 mpg
320d Convertible DPF
26 mpg
city
31 mpg
No data
highway
No data
15.9 gal
Fuel Tank Capacity
16.1 gal
533 mi
Range
654 mi
428i Cabrio
533 mi
654 mi
320d Convertible DPF
Environmental Impact
132.6 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
428i Cabrio
132.6 kWh
119.3 kWh
320d Convertible DPF
Euro 6b (NEFZ)
Emission Standard
Euro 4
262 g/mi (NEFZ)
CO2 Emissions
246 g/mi (NEFZ)
Practical Convenience
428i Cabrio
320d Convertible DPF
2
Doors
2
4
No. of Seats
4
827 lb
Maximum Payload
783 lb
10.5 cu ft
Trunk Volume
9.9 cu ft









No data
Cargo Volume (Seats Down)
No data