The Comparative Analysis :
BMW 420d Cabrio Steptronic (14 - 15) vs. BMW M4 Cabrio (14 - 17)
€ 48,500
€ 79,700
€ 48,500
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 79,700
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The 420d Cabrio is a little smaller in every dimension. It's 3.3 cm shorter, 4.5 cm narrower and 0.2 cm lower than the M4 Cabrio.
420d Cabrio
M4 Cabrio
1384
1825
2017
1386
1870
2014
1825 mm
Width
1870 mm
2017 mm
Width Incl. Mirrors
2014 mm
1384 mm
Height
1386 mm
2810
4638
2812
4671
4638 mm
Length
4671 mm
2810 mm
Wheelbase
2812 mm
Vehicle Weight
420d Cabrio
M4 Cabrio
1755 kg
Kerb Weight
1825 kg
2160 kg
Gross Vehicle
Weight
Weight
2250 kg
Weight Difference:
70 kg
3.84 %
General
420d Cabrio
M4 Cabrio
F33
Generation
F83
Convertible
Car Body Style
Convertible
Diesel
Fuel Type
Super Unleaded (98 RON)
Rear-wheel drive
Drive
Rear-wheel drive
8-speed automatic transmission
Transmission
6-speed manual transmission
Engine
420d Cabrio
M4 Cabrio
Straight-four diesel engine with turbocharger
Engine Type
Straight-six petrol engine with two turbochargers (biturbo)
BMW N47
Engine Series
BMW S55
N47-D20
Engine Code
S55-B30
4
Valves
4
4
Cylinders
6
1995 CC
Engine Capacity
2979 CC
181 bhp
at 4000 rpm
Power
425 bhp
at 5500 rpm
420d Cabrio
181 bhp
425 bhp
M4 Cabrio
380 NM
at 1750 rpm
Max. Torque
550 NM
at 1850 rpm
420d Cabrio
380 NM
550 NM
M4 Cabrio
Performance
420d Cabrio
M4 Cabrio
142 mph
Maximum Speed
155 mph
8.2 sec
Acceleration 0 to 62 mph
4.6 sec
62 mph
62
mph
mph
114 m
0.000 sec
420d Cabrio
62 mph
62
mph
mph
64 m
0.000 sec
M4 Cabrio
▶ REPLAY
9.7 kg/bhp
Weight-to-Power Ratio
4.29 kg/bhp
420d Cabrio
9.7 kg/bhp
4.29 kg/bhp
M4 Cabrio
Fuel Economy / Emissions
420d Cabrio
M4 Cabrio
Fuel Economy
59 mpg
combined
31 mpg
420d Cabrio
59 mpg
31 mpg
M4 Cabrio
50 mpg
city
23 mpg
No data
motorway
No data
57 L
Fuel Tank Capacity
60 L
738 mi
Range
409 mi
420d Cabrio
738 mi
409 mi
M4 Cabrio
Environmental Impact
98.8 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).
172.4 kWh
420d Cabrio
98.8 kWh
172.4 kWh
M4 Cabrio
Euro 6b (NEFZ)
Emission Standard
Euro 6b (NEFZ)
127 g/km (NEFZ)
CO2 Emissions
213 g/km (NEFZ)
Practical Convenience
420d Cabrio
M4 Cabrio
2
Doors
2
4
No. of Seats
4
405 kg
Maximum Payload
425 kg
370 L
Boot Capacity
370 L
No data
Boot Capacity (Seats Down)
No data
