The Comparative Analysis :
BMW 320d Convertible DPF (08 - 08) vs. BMW 420i Convertible (17 - 18)
€ 43,900
€ 48,500
€ 43,900
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 48,500
ⓘ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. Both cars are the same height, but the 320d Convertible DPF is 2.3 inches shorter and 1.7 inches narrower.
320d Convertible DPF
420i Cabrio
54.5
70.2
78.1
54.5
71.9
79.4
70.2 in
Width
71.9 in
78.1 in
Width Incl. Mirrors
79.4 in
54.5 in
Height
54.5 in
108.7
180.3
110.6
182.6
180.3 in
Length
182.6 in
108.7 in
Wheelbase
110.6 in
Vehicle Weight
320d Convertible DPF
420i Cabrio
3814 lb
Curb Weight
3913 lb
4597 lb
Gross Vehicle
Weight
Weight
4784 lb
Weight Difference:
99 lb
2.53 %
General
320d Convertible DPF
420i Cabrio
E93
Generation
F33
Convertible
Car Body Style
Convertible
Diesel
Fuel Type
Premium Unleaded
Rear-wheel drive
Drivetrain
Rear-wheel drive
6-speed manual transmission
Transmission
6-speed manual transmission
Engine
320d Convertible DPF
420i Cabrio
Straight-four diesel engine with turbocharger
Engine Type
Straight-four gasoline engine with turbocharger
BMW N47
Engine Series
BMW B48
N47-D20
Engine Code
B48-B20
4
Valves
4
4
Cylinders
4
2 L / 98 cu in
Displacement
2 L / 98 cu in
175 hp
at 4000 rpm
Power
181 hp
at 5000 rpm
320d Convertible DPF
175 hp
181 hp
420i Cabrio
258 lb‑ft
at 2000 rpm
Max. Torque
199 lb‑ft
at 1350 rpm
320d Convertible DPF
258 lb‑ft
199 lb‑ft
420i Cabrio
Performance
320d Convertible DPF
420i Cabrio
139 mph
Maximum Speed
143 mph
8.6 sec
Acceleration 0 to 62 mph
8.2 sec
62 mph
62
mph
mph
390 ft
0.000 sec
320d Convertible DPF
62 mph
62
mph
mph
374 ft
0.000 sec
420i Cabrio
▶ REPLAY
21.79 lb/hp
Weight-to-Power Ratio
21.62 lb/hp
320d Convertible DPF
21.79 lb/hp
21.62 lb/hp
420i Cabrio
Fuel Economy / Emissions
320d Convertible DPF
420i Cabrio
Fuel Economy
44 mpg
combined
38 mpg
320d Convertible DPF
44 mpg
38 mpg
420i Cabrio
34 mpg
city
29 mpg
No data
highway
No data
16.1 gal
Fuel Tank Capacity
15.9 gal
715 mi
Range
601 mi
320d Convertible DPF
715 mi
601 mi
420i Cabrio
Environmental Impact
109.1 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).
117.5 kWh
320d Convertible DPF
109.1 kWh
117.5 kWh
420i Cabrio
Euro 4
Emission Standard
Euro 6b (NEFZ)
225 g/mi (NEFZ)
CO2 Emissions
233 g/mi (NEFZ)
Practical Convenience
320d Convertible DPF
420i Cabrio
2
Doors
2
4
No. of Seats
4
783 lb
Maximum Payload
871 lb
9.9 cu ft
Trunk Volume
10.5 cu ft
No data
Cargo Volume (Seats Down)
No data
