The Comparative Analysis :
BMW 428i Convertible (14 - 15) vs. BMW M4 Convertible (17 - 18)
€ 48,200
€ 85,500
€ 48,200
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 85,500
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The 428i Cabrio is a little smaller in every dimension. It's 1.3 inches shorter, 1.8 inches narrower and 0.1 inches lower than the M4 Cabrio.
428i Cabrio
M4 Cabrio
54.5
71.9
79.4
54.6
73.6
79.3
71.9 in
Width
73.6 in
79.4 in
Width Incl. Mirrors
79.3 in
54.5 in
Height
54.6 in
110.6
182.6
110.7
183.9
182.6 in
Length
183.9 in
110.6 in
Wheelbase
110.7 in
Vehicle Weight
428i Cabrio
M4 Cabrio
3869 lb
Curb Weight
4023 lb
4718 lb
Gross Vehicle
Weight
Weight
4960 lb
Weight Difference:
154 lb
3.83 %
General
428i Cabrio
M4 Cabrio
F33
Generation
F83
Convertible
Car Body Style
Convertible
Premium Unleaded
Fuel Type
Premium Unleaded
Rear-wheel drive
Drivetrain
Rear-wheel drive
6-speed manual transmission
Transmission
6-speed manual transmission
Engine
428i Cabrio
M4 Cabrio
Straight-four gasoline engine with turbocharger
Engine Type
Straight-six gasoline engine with two turbochargers (biturbo)
BMW N20
Engine Series
BMW S55
N20-B20
Engine Code
S55-B30
4
Valves
4
4
Cylinders
6
2 L / 98 cu in
Displacement
3 L / 147 cu in
242 hp
at 5000 rpm
Power
425 hp
at 5500 rpm
428i Cabrio
242 hp
425 hp
M4 Cabrio
258 lb‑ft
at 1250 rpm
Max. Torque
406 lb‑ft
at 1850 rpm
428i Cabrio
258 lb‑ft
406 lb‑ft
M4 Cabrio
Performance
428i Cabrio
M4 Cabrio
155 mph
Maximum Speed
155 mph
6.4 sec
Acceleration 0 to 62 mph
4.6 sec
62 mph
62
mph
mph
292 ft
0.000 sec
428i Cabrio
62 mph
62
mph
mph
210 ft
0.000 sec
M4 Cabrio
▶ REPLAY
15.99 lb/hp
Weight-to-Power Ratio
9.47 lb/hp
428i Cabrio
15.99 lb/hp
9.47 lb/hp
M4 Cabrio
Fuel Economy / Emissions
428i Cabrio
M4 Cabrio
Fuel Economy
35 mpg
combined
25 mpg
428i Cabrio
35 mpg
25 mpg
M4 Cabrio
27 mpg
city
19 mpg
No data
highway
No data
15.9 gal
Fuel Tank Capacity
15.9 gal
548 mi
Range
393 mi
428i Cabrio
548 mi
393 mi
M4 Cabrio
Environmental Impact
128.7 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).
179.9 kWh
428i Cabrio
128.7 kWh
179.9 kWh
M4 Cabrio
Euro 6b (NEFZ)
Emission Standard
Euro 6b (NEFZ)
256 g/mi (NEFZ)
CO2 Emissions
351 g/mi (NEFZ)
Practical Convenience
428i Cabrio
M4 Cabrio
2
Doors
2
4
No. of Seats
4
849 lb
Maximum Payload
937 lb
10.5 cu ft
Trunk Volume
10.5 cu ft
No data
Cargo Volume (Seats Down)
No data
