The Comparative Analysis :
BMW 330i Convertible Automatic (10 - 14) vs. BMW 420i Convertible Steptronic (14 - 16)
€ 52,400
€ 46,100
€ 52,400
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 dimensions of these vehicles differ a little. Both cars are the same height, but the 330i Cabrio is an inch shorter and 1.7 inches narrower.
330i 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
181.6
110.6
182.6
181.6 in
Length
182.6 in
108.7 in
Wheelbase
110.6 in
Vehicle Weight
330i Cabrio
420i Cabrio
3957 lb
Curb Weight
3858 lb
4740 lb
Gross Vehicle
Weight
Weight
4729 lb
Weight Difference:
99 lb
2.5 %
General
330i Cabrio
420i Cabrio
E93
Generation
F33
Convertible
Car Body Style
Convertible
Premium Unleaded
Fuel Type
Premium Unleaded
Rear-wheel drive
Drivetrain
Rear-wheel drive
6-speed automatic transmission
Transmission
8-speed automatic transmission
Engine
330i Cabrio
420i Cabrio
Straight-six gasoline engine (naturally aspirated engine)
Engine Type
Straight-four gasoline engine with turbocharger
BMW N53
Engine Series
BMW N20
N53-B30
Engine Code
N20-B20
4
Valves
4
6
Cylinders
4
3 L / 147 cu in
Displacement
2 L / 98 cu in
268 hp
at 6700 rpm
Power
181 hp
at 5000 rpm
330i Cabrio
268 hp
181 hp
420i Cabrio
236 lb‑ft
at 2750 rpm
Max. Torque
199 lb‑ft
at 1250 rpm
330i Cabrio
236 lb‑ft
199 lb‑ft
420i Cabrio
Performance
330i Cabrio
420i Cabrio
155 mph
Maximum Speed
143 mph
6.7 sec
Acceleration 0 to 62 mph
8.3 sec
62 mph
62
mph
mph
305 ft
0.000 sec
330i Cabrio
62 mph
62
mph
mph
377 ft
0.000 sec
420i Cabrio
▶ REPLAY
14.76 lb/hp
Weight-to-Power Ratio
21.31 lb/hp
330i Cabrio
14.76 lb/hp
21.31 lb/hp
420i Cabrio
Fuel Economy / Emissions
330i Cabrio
420i Cabrio
Fuel Economy
29 mpg
combined
37 mpg
330i Cabrio
29 mpg
37 mpg
420i Cabrio
21 mpg
city
27 mpg
No data
highway
No data
16.6 gal
Fuel Tank Capacity
15.9 gal
477 mi
Range
583 mi
330i Cabrio
477 mi
583 mi
420i Cabrio
Environmental Impact
155.3 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).
121.2 kWh
330i Cabrio
155.3 kWh
121.2 kWh
420i Cabrio
Euro 5
Emission Standard
Euro 6b (NEFZ)
306 g/mi (NEFZ)
CO2 Emissions
240 g/mi (NEFZ)
Practical Convenience
330i 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
