The Comparative Analysis :
BMW 330d Convertible (07 - 09) vs. BMW 420i Convertible (17 - 18)
€ 50,000

€ 48,500

€ 50,000
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 330d Cabrio is 2.3 inches shorter and 1.7 inches narrower.
330d Cabrio
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
330d Cabrio
420i Cabrio
4023 lb
Curb Weight
3913 lb
4806 lb
Gross Vehicle
Weight
Weight
4784 lb

Weight Difference:
110 lb
2.73 %

General
330d Cabrio
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
330d Cabrio
420i Cabrio
Straight-six diesel engine with turbocharger
Engine Type
Straight-four gasoline engine with turbocharger
BMW M57
Engine Series
BMW B48
M57-D30
Engine Code
B48-B20


4
Valves
4
6
Cylinders
4
3 L / 147 cu in
Displacement
2 L / 98 cu in
228 hp
at 4000 rpm
Power
181 hp
at 5000 rpm
330d Cabrio
228 hp
181 hp
420i Cabrio
369 lb‑ft
at 1750 rpm
Max. Torque
199 lb‑ft
at 1350 rpm
330d Cabrio
369 lb‑ft
199 lb‑ft
420i Cabrio
Performance
330d Cabrio
420i Cabrio
152 mph
Maximum Speed
143 mph
7 sec
Acceleration 0 to 62 mph
8.2 sec
62 mph
62
mph
mph
318 ft
0.000 sec

330d Cabrio
62 mph
62
mph
mph
374 ft
0.000 sec

420i Cabrio
▶ REPLAY
17.64 lb/hp
Weight-to-Power Ratio
21.62 lb/hp
330d Cabrio
17.64 lb/hp
21.62 lb/hp
420i Cabrio
Fuel Economy / Emissions
330d Cabrio
420i Cabrio
Fuel Economy
36 mpg
combined
38 mpg
330d Cabrio
36 mpg
38 mpg
420i Cabrio
27 mpg
city
29 mpg
No data
highway
No data
16.1 gal
Fuel Tank Capacity
15.9 gal
583 mi
Range
601 mi
330d Cabrio
583 mi
601 mi
420i Cabrio
Environmental Impact
133.7 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
330d Cabrio
133.7 kWh
117.5 kWh
420i Cabrio
Euro 4
Emission Standard
Euro 6b (NEFZ)
274 g/mi (NEFZ)
CO2 Emissions
233 g/mi (NEFZ)
Practical Convenience
330d Cabrio
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