The Comparative Analysis :
BMW 440i Convertible Steptronic (17 - ..) vs. BMW 428i Convertible (14 - 15)
€ 65,900
€ 48,200
€ 65,900
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 48,200
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The dimensions of the 440i Cabrio and the 428i Cabrio are absolutely identical. Both are 182.6 inches long, 71.9 inches wide and 54.5 inches tall.
440i Cabrio
428i Cabrio
54.5
71.9
79.4
54.5
71.9
79.4
71.9 in
Width
71.9 in
79.4 in
Width Incl. Mirrors
79.4 in
54.5 in
Height
54.5 in
110.6
182.6
110.6
182.6
182.6 in
Length
182.6 in
110.6 in
Wheelbase
110.6 in
Vehicle Weight
440i Cabrio
428i Cabrio
4068 lb
Curb Weight
3869 lb
4916 lb
Gross Vehicle
Weight
Weight
4718 lb
Weight Difference:
198 lb
4.87 %
General
440i Cabrio
428i Cabrio
F33
Generation
F33
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
440i Cabrio
428i Cabrio
Straight-six gasoline engine with turbocharger
Engine Type
Straight-four gasoline engine with turbocharger
BMW B58
Engine Series
BMW N20
B58-B30
Engine Code
N20-B20


4
Valves
4
6
Cylinders
4
3 L / 147 cu in
Displacement
2 L / 98 cu in
322 hp
at 5500 rpm
Power
242 hp
at 5000 rpm
440i Cabrio
322 hp
242 hp
428i Cabrio
332 lb‑ft
at 1380 rpm
Max. Torque
258 lb‑ft
at 1250 rpm
440i Cabrio
332 lb‑ft
258 lb‑ft
428i Cabrio
Performance
440i Cabrio
428i Cabrio
155 mph
Maximum Speed
155 mph
5.4 sec
Acceleration 0 to 62 mph
6.4 sec
62 mph
62
mph
mph
246 ft
0.000 sec
440i Cabrio
62 mph
62
mph
mph
292 ft
0.000 sec
428i Cabrio
▶ REPLAY
12.63 lb/hp
Weight-to-Power Ratio
15.99 lb/hp
440i Cabrio
12.63 lb/hp
15.99 lb/hp
428i Cabrio
Fuel Economy / Emissions
440i Cabrio
428i Cabrio
Fuel Economy
32 mpg
combined
35 mpg
440i Cabrio
32 mpg
35 mpg
428i Cabrio
25 mpg
city
27 mpg
No data
highway
No data
15.9 gal
Fuel Tank Capacity
15.9 gal
504 mi
Range
548 mi
440i Cabrio
504 mi
548 mi
428i Cabrio
Environmental Impact
140.2 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).
128.7 kWh
440i Cabrio
140.2 kWh
128.7 kWh
428i Cabrio
Euro 6d-TEMP-EVAP-ISC (WLTP)
Emission Standard
Euro 6b (NEFZ)
335 g/mi (WLTP)
CO2 Emissions
256 g/mi (NEFZ)
Practical Convenience
440i Cabrio
428i Cabrio
2
Doors
2
4
No. of Seats
4
849 lb
Maximum Payload
849 lb
10.5 cu ft
Trunk Volume
10.5 cu ft










No data
Cargo Volume (Seats Down)
No data
















