The Comparative Analysis :
BMW 420i Convertible (17 - 18) vs. BMW M4 Convertible Competition M DKG (18 - 19)
€ 48,500
€ 96,000
€ 48,500
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 96,000
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The 420i Cabrio is a little smaller in every dimension. It's 1.3 inches shorter, 1.8 inches narrower and 0.3 inches lower than the M4 Convertible Competition Package.
420i Cabrio
M4 Convertible Competition Package
54.5
71.9
79.4
54.8
73.6
79.3
71.9 in
Width
73.6 in
79.4 in
Width Incl. Mirrors
79.3 in
54.5 in
Height
54.8 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
420i Cabrio
M4 Convertible Competition Package
3913 lb
Curb Weight
4167 lb
4784 lb
Gross Vehicle
Weight
Weight
4960 lb
Weight Difference:
254 lb
6.1 %
General
420i Cabrio
M4 Convertible Competition Package
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
7-speed dual clutch transmission
Engine
420i Cabrio
M4 Convertible Competition Package
Straight-four gasoline engine with turbocharger
Engine Type
Straight-six gasoline engine with two turbochargers (biturbo)
BMW B48
Engine Series
BMW S55
B48-B20
Engine Code
S55-B30
4
Valves
4
4
Cylinders
6
2 L / 98 cu in
Displacement
3 L / 147 cu in
181 hp
at 5000 rpm
Power
444 hp
at 7000 rpm
420i Cabrio
181 hp
444 hp
M4 Convertible Competition Package
199 lb‑ft
at 1350 rpm
Max. Torque
406 lb‑ft
at 2350 rpm
420i Cabrio
199 lb‑ft
406 lb‑ft
M4 Convertible Competition Package
Performance
420i Cabrio
M4 Convertible Competition Package
143 mph
Maximum Speed
155 mph
8.2 sec
Acceleration 0 to 62 mph
4.3 sec
62 mph
62
mph
mph
374 ft
0.000 sec
420i Cabrio
62 mph
62
mph
mph
197 ft
0.000 sec
M4 Convertible Competition Package
▶ REPLAY
21.62 lb/hp
Weight-to-Power Ratio
9.39 lb/hp
420i Cabrio
21.62 lb/hp
9.39 lb/hp
M4 Convertible Competition Package
Fuel Economy / Emissions
420i Cabrio
M4 Convertible Competition Package
Fuel Economy
38 mpg
combined
25 mpg
420i Cabrio
38 mpg
25 mpg
M4 Convertible Competition Package
29 mpg
city
20 mpg
No data
highway
No data
15.9 gal
Fuel Tank Capacity
15.9 gal
601 mi
Range
393 mi
420i Cabrio
601 mi
393 mi
M4 Convertible Competition Package
Environmental Impact
117.5 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
420i Cabrio
117.5 kWh
179.9 kWh
M4 Convertible Competition Package
Euro 6b (NEFZ)
Emission Standard
Euro 6d-TEMP-EVAP (WLTP)
233 g/mi (NEFZ)
CO2 Emissions
372 g/mi (WLTP)
Practical Convenience
420i Cabrio
M4 Convertible Competition Package
2
Doors
2
4
No. of Seats
4
871 lb
Maximum Payload
794 lb
10.5 cu ft
Trunk Volume
10.5 cu ft
No data
Cargo Volume (Seats Down)
No data
