The Comparative Analysis :
BMW 420i Convertible Steptronic (16 - 17) vs. BMW 318i Convertible (10 - 14)
€ 46,900
€ 39,100
€ 46,900
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 39,100
ⓘ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 420i Cabrio is an inch longer and 1.7 inches wider.
420i Cabrio
318i 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
181.6
182.6 in
Length
181.6 in
110.6 in
Wheelbase
108.7 in
Vehicle Weight
420i Cabrio
318i Cabrio
3946 lb
Curb Weight
3682 lb
4817 lb
Gross Vehicle
Weight
Weight
4464 lb
Weight Difference:
265 lb
6.72 %
General
420i Cabrio
318i 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 manual transmission
Engine
420i Cabrio
318i Cabrio
Straight-four gasoline engine with turbocharger
Engine Type
Straight-four gasoline engine (naturally aspirated engine)
BMW B48
Engine Series
BMW N43
B48-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
141 hp
at 6000 rpm
420i Cabrio
181 hp
141 hp
318i Cabrio
199 lb‑ft
at 1350 rpm
Max. Torque
140 lb‑ft
at 4250 rpm
420i Cabrio
199 lb‑ft
140 lb‑ft
318i Cabrio
Performance
420i Cabrio
318i Cabrio
143 mph
Maximum Speed
130 mph
8.4 sec
Acceleration 0 to 62 mph
10.3 sec
62 mph
62
mph
mph
384 ft
0.000 sec
420i Cabrio
62 mph
62
mph
mph
469 ft
0.000 sec
318i Cabrio
▶ REPLAY
21.8 lb/hp
Weight-to-Power Ratio
26.11 lb/hp
420i Cabrio
21.8 lb/hp
26.11 lb/hp
318i Cabrio
Fuel Economy / Emissions
420i Cabrio
318i Cabrio
Fuel Economy
41 mpg
combined
36 mpg
420i Cabrio
41 mpg
36 mpg
318i Cabrio
31 mpg
city
28 mpg
No data
highway
No data
15.9 gal
Fuel Tank Capacity
16.6 gal
642 mi
Range
593 mi
420i Cabrio
642 mi
593 mi
318i Cabrio
Environmental Impact
109.9 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).
125 kWh
420i Cabrio
109.9 kWh
125 kWh
318i Cabrio
Euro 6b (NEFZ)
Emission Standard
Euro 5
219 g/mi (NEFZ)
CO2 Emissions
248 g/mi (NEFZ)
Practical Convenience
420i Cabrio
318i 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
