The Comparative Analysis :
BMW 330i Cabrio Automatic (07 - 10) vs. BMW 420i Cabrio Steptronic (14 - 16)
€ 51,900
€ 46,100
€ 51,900
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 dimensions of these vehicles differ slightly. Both cars are the same height, but the 330i Cabrio is 5.8 cm shorter and 4.3 cm narrower.
330i Cabrio
420i Cabrio
1384
1782
1985
1384
1825
2017
1782 mm
Width
1825 mm
1985 mm
Width Incl. Mirrors
2017 mm
1384 mm
Height
1384 mm
2760
4580
2810
4638
4580 mm
Length
4638 mm
2760 mm
Wheelbase
2810 mm
Vehicle Weight
330i Cabrio
420i Cabrio
1795 kg
Kerb Weight
1750 kg
2150 kg
Gross Vehicle
Weight
Weight
2145 kg
Weight Difference:
45 kg
2.51 %
General
330i Cabrio
420i Cabrio
E93
Generation
F33
Convertible
Car Body Style
Convertible
Super Unleaded (98 RON)
Fuel Type
Super Unleaded (98 RON)

Rear-wheel drive
Drive
Rear-wheel drive

6-speed automatic transmission
Transmission
8-speed automatic transmission
Engine
330i Cabrio
420i Cabrio
Straight-six petrol engine (naturally aspirated engine)
Engine Type
Straight-four petrol engine with turbocharger
BMW N53
Engine Series
BMW N20
N53-B30
Engine Code
N20-B20


4
Valves
4
6
Cylinders
4
2996 CC
Engine Capacity
1997 CC
268 bhp
at 6700 rpm
Power
181 bhp
at 5000 rpm
330i Cabrio
268 bhp
181 bhp
420i Cabrio
320 NM
at 2750 rpm
Max. Torque
270 NM
at 1250 rpm
330i Cabrio
320 NM
270 NM
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
93 m
0.000 sec
330i Cabrio
62 mph
62
mph
mph
115 m
0.000 sec
420i Cabrio
▶ REPLAY
6.7 kg/bhp
Weight-to-Power Ratio
9.67 kg/bhp
330i Cabrio
6.7 kg/bhp
9.67 kg/bhp
420i Cabrio
Fuel Economy / Emissions
330i Cabrio
420i Cabrio
Fuel Economy
34 mpg
combined
44 mpg
330i Cabrio
34 mpg
44 mpg
420i Cabrio
25 mpg
city
33 mpg
No data
motorway
No data
63 L
Fuel Tank Capacity
60 L
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)
190 g/km (NEFZ)
CO2 Emissions
149 g/km (NEFZ)
Practical Convenience
330i Cabrio
420i Cabrio
2
Doors
2
4
No. of Seats
4
355 kg
Maximum Payload
395 kg
350 L
Boot Capacity
370 L









No data
Boot Capacity (Seats Down)
No data




















