The Comparative Analysis :
BMW 425d Convertible (14 - 15) vs. BMW 420i Convertible (17 - 18)
€ 49,800

€ 48,500

€ 49,800
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 the 425d Cabrio and the 420i Cabrio are absolutely identical. Both are 182.6 inches long, 71.9 inches wide and 54.5 inches tall.
425d Cabrio
420i Cabrio
54.5
71.9
79.4
54.5
71.9
79.4
71.9 in
Width
71.9 in
79.4 in
Width Incl. Mirrors
79.4 in
54.5 in
Height
54.5 in
110.6
182.6
110.6
182.6
182.6 in
Length
182.6 in
110.6 in
Wheelbase
110.6 in
Vehicle Weight
425d Cabrio
420i Cabrio
3781 lb
Curb Weight
3913 lb
3946 lb
Gross Vehicle
Weight
Weight
4784 lb

Weight Difference:
132 lb
3.37 %

General
425d Cabrio
420i Cabrio
F33
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
425d Cabrio
420i Cabrio
Straight-four diesel engine with two turbochargers (biturbo)
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
215 hp
at 4400 rpm
Power
181 hp
at 5000 rpm
425d Cabrio
215 hp
181 hp
420i Cabrio
332 lb‑ft
at 1500 rpm
Max. Torque
199 lb‑ft
at 1350 rpm
425d Cabrio
332 lb‑ft
199 lb‑ft
420i Cabrio
Performance
425d Cabrio
420i Cabrio
150 mph
Maximum Speed
143 mph
7.3 sec
Acceleration 0 to 62 mph
8.2 sec
62 mph
62
mph
mph
331 ft
0.000 sec

425d Cabrio
62 mph
62
mph
mph
374 ft
0.000 sec

420i Cabrio
▶ REPLAY
17.59 lb/hp
Weight-to-Power Ratio
21.62 lb/hp
425d Cabrio
17.59 lb/hp
21.62 lb/hp
420i Cabrio
Fuel Economy / Emissions
425d Cabrio
420i Cabrio
Fuel Economy
45 mpg
combined
38 mpg
425d Cabrio
45 mpg
38 mpg
420i Cabrio
36 mpg
city
29 mpg
No data
highway
No data
15.1 gal
Fuel Tank Capacity
15.9 gal
681 mi
Range
601 mi
425d Cabrio
681 mi
601 mi
420i Cabrio
Environmental Impact
107 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
425d Cabrio
107 kWh
117.5 kWh
420i Cabrio
Euro 6b (NEFZ)
Emission Standard
Euro 6b (NEFZ)
222 g/mi (NEFZ)
CO2 Emissions
233 g/mi (NEFZ)
Practical Convenience
425d Cabrio
420i Cabrio
2
Doors
2
4
No. of Seats
4
165 lb
Maximum Payload
871 lb
10.5 cu ft
Trunk Volume
10.5 cu ft










No data
Cargo Volume (Seats Down)
No data