The Comparative Analysis :

BMW 420d Cabrio Steptronic (15 - 17) vs. BMW M4 Cabrio (19 - ..)

€ 50,100
BMW 420d Cabrio Steptronic (15 - 17) 420d Cabrio
€ 92,500
 BMW M4 Cabrio (19 - ..) M4 Cabrio
€ 50,100
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 92,500

ⓘ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 0.8 cm lower than the M4 Cabrio.
420d Cabrio
M4 Cabrio
1384
Blueprint BMW 420d Cabrio Steptronic (15 - 17)
1825
2017
1392
Blueprint BMW M4 Cabrio (19 - ..)
1870
2014
1825 mm
Width
1870 mm
2017 mm
Width Incl. Mirrors
2014 mm
1384 mm
Height
1392 mm
Blueprint BMW 420d Cabrio Steptronic (15 - 17)
2810
4638
Blueprint BMW M4 Cabrio (19 - ..)
2812
4671
4638 mm
Length
4671 mm
2810 mm
Wheelbase
2812 mm

Vehicle Weight

420d Cabrio
M4 Cabrio
1790 kg
Kerb Weight
1865 kg
2185 kg
Gross Vehicle
Weight
2250 kg
BMW 420d Cabrio Steptronic (15 - 17)
Weight Difference:
75 kg
4.02 %
BMW M4 Cabrio (19 - ..)

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 B47
Engine Series
BMW S55
B47-D20
Engine Code
S55-B30
4
Valves
4
4
Cylinders
6
1995 CC
Engine Capacity
2979 CC
187 bhp
at 4000 rpm
Power
444 bhp
at 7000 rpm
420d Cabrio
187 bhp
444 bhp
M4 Cabrio
400 NM
at 1750 rpm
Max. Torque
550 NM
at 2350 rpm
420d Cabrio
400 NM
550 NM
M4 Cabrio

Performance

420d Cabrio
M4 Cabrio
142 mph
Maximum Speed
155 mph
8 sec
Acceleration 0 to 62 mph
4.5 sec
62 mph 62
mph

111 m
0.000 sec

420d Cabrio

62 mph 62
mph

63 m
0.000 sec

M4 Cabrio

▶ REPLAY
9.57 kg/bhp
Weight-to-Power Ratio
4.2 kg/bhp
420d Cabrio
9.57 kg/bhp
4.2 kg/bhp
M4 Cabrio

Fuel Economy / Emissions

420d Cabrio
M4 Cabrio
Fuel Economy
64 mpg
combined
28 mpg
420d Cabrio
64 mpg
28 mpg
M4 Cabrio
54 mpg
city
22 mpg
No data
motorway
No data
Kraftstoffanzeige
57 L
Fuel Tank Capacity
60 L
Kraftstoffanzeige
805 mi
Range
365 mi
420d Cabrio
805 mi
365 mi
M4 Cabrio
Environmental Impact
90.4 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).
193.3 kWh
420d Cabrio
90.4 kWh
193.3 kWh
M4 Cabrio
Euro 6b (NEFZ)
Emission Standard
Euro 6d-TEMP-EVAP-ISC (WLTP)
116 g/km (NEFZ)
CO2 Emissions
238 g/km (WLTP)

Practical Convenience

420d Cabrio
M4 Cabrio
2
Doors
2
4
No. of Seats
4
395 kg
Maximum Payload
385 kg
370 L
Boot Capacity
370 L
No data
Boot Capacity (Seats Down)
No data