The Comparative Analysis :
BMW 420i Convertible Steptronic (14 - 16) vs. BMW 320i Convertible Automatic (07 - 10)
€ 46,100
€ 43,300
€ 46,100
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 43,300
ⓘ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 420i Cabrio is 2.3 inches longer and 1.7 inches wider.
420i Cabrio
320i Cabrio
54.5
71.9
79.4
54.5
70.2
78.1
71.9 in
Width
70.2 in
79.4 in
Width Incl. Mirrors
78.1 in
54.5 in
Height
54.5 in
110.6
182.6
108.7
180.3
182.6 in
Length
180.3 in
110.6 in
Wheelbase
108.7 in
Vehicle Weight
420i Cabrio
320i Cabrio
3858 lb
Curb Weight
3748 lb
4729 lb
Gross Vehicle
Weight
Weight
4530 lb
Weight Difference:
110 lb
2.85 %
General
420i Cabrio
320i Cabrio
F33
Generation
E93
Convertible
Car Body Style
Convertible
Premium Unleaded
Fuel Type
Premium Unleaded
Rear-wheel drive
Drivetrain
Rear-wheel drive
8-speed automatic transmission
Transmission
6-speed automatic transmission
Engine
420i Cabrio
320i Cabrio
Straight-four gasoline engine with turbocharger
Engine Type
Straight-four gasoline engine (naturally aspirated engine)
BMW N20
Engine Series
BMW N43
N20-B20
Engine Code
N43-B20
4
Valves
4
4
Cylinders
4
2 L / 98 cu in
Displacement
2 L / 98 cu in
181 hp
at 5000 rpm
Power
168 hp
at 6700 rpm
420i Cabrio
181 hp
168 hp
320i Cabrio
199 lb‑ft
at 1250 rpm
Max. Torque
155 lb‑ft
at 4250 rpm
420i Cabrio
199 lb‑ft
155 lb‑ft
320i Cabrio
Performance
420i Cabrio
320i Cabrio
143 mph
Maximum Speed
140 mph
8.3 sec
Acceleration 0 to 62 mph
9.8 sec
62 mph
62
mph
mph
377 ft
0.000 sec
420i Cabrio
62 mph
62
mph
mph
446 ft
0.000 sec
320i Cabrio
▶ REPLAY
21.31 lb/hp
Weight-to-Power Ratio
22.31 lb/hp
420i Cabrio
21.31 lb/hp
22.31 lb/hp
320i Cabrio
Fuel Economy / Emissions
420i Cabrio
320i Cabrio
Fuel Economy
37 mpg
combined
32 mpg
420i Cabrio
37 mpg
32 mpg
320i Cabrio
27 mpg
city
24 mpg
No data
highway
No data
15.9 gal
Fuel Tank Capacity
16.6 gal
583 mi
Range
536 mi
420i Cabrio
583 mi
536 mi
320i Cabrio
Environmental Impact
121.2 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).
138.2 kWh
420i Cabrio
121.2 kWh
138.2 kWh
320i Cabrio
Euro 6b (NEFZ)
Emission Standard
Euro 5
240 g/mi (NEFZ)
CO2 Emissions
272 g/mi (NEFZ)
Practical Convenience
420i Cabrio
320i Cabrio
2
Doors
2
4
No. of Seats
4
871 lb
Maximum Payload
783 lb
10.5 cu ft
Trunk Volume
9.9 cu ft
No data
Cargo Volume (Seats Down)
No data
