The Comparative Analysis :
BMW 420i Coupé xDrive Steptronic (16 - 17) vs. BMW M4 CS Coupé M DKG (17 - 18)
€ 42,200
€ 116,900
€ 42,200
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 116,900
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The dimensions of these vehicles differ a little. Both cars are the same height, but the 420i Coupé is 3.4 cm shorter and 4.5 cm narrower.
420i Coupé
M4 CS Coupé
1392
1825
2017
1392
1870
2014
1825 mm
Width
1870 mm
2017 mm
Width Incl. Mirrors
2014 mm
1392 mm
Height
1392 mm
2810
4638
2812
4672
4638 mm
Length
4672 mm
2810 mm
Wheelbase
2812 mm
Vehicle Weight
420i Coupé
M4 CS Coupé
1645 kg
Kerb Weight
1655 kg
2090 kg
Gross Vehicle
Weight
Weight
2040 kg
Weight Difference:
10 kg
0.6 %
General
420i Coupé
M4 CS Coupé
F32
Generation
F82
Coupe
Car Body Style
Coupe
Super Unleaded (98 RON)
Fuel Type
Super Unleaded (98 RON)

Permanent all-wheel drive
Drive
Rear-wheel drive

8-speed automatic transmission
Transmission
7-speed dual clutch transmission
Engine
420i Coupé
M4 CS Coupé
Straight-four petrol engine with turbocharger
Engine Type
Straight-six petrol engine with two turbochargers (biturbo)
BMW B48
Engine Series
BMW S55
B48-B20
Engine Code
S55-B30

4
Valves
4
4
Cylinders
6
1997 CC
Engine Capacity
2979 CC
181 bhp
at 5000 rpm
Power
454 bhp
at 6250 rpm
420i Coupé
181 bhp
454 bhp
M4 CS Coupé
270 NM
at 1350 rpm
Max. Torque
600 NM
at 4000 rpm
420i Coupé
270 NM
600 NM
M4 CS Coupé
Performance
420i Coupé
M4 CS Coupé
144 mph
Maximum Speed
174 mph
7.8 sec
Acceleration 0 to 62 mph
3.9 sec
62 mph
62
mph
mph
108 m
0.000 sec
420i Coupé
62 mph
62
mph
mph
54 m
0.000 sec
M4 CS Coupé
▶ REPLAY
9.09 kg/bhp
Weight-to-Power Ratio
3.65 kg/bhp
420i Coupé
9.09 kg/bhp
3.65 kg/bhp
M4 CS Coupé
Fuel Economy / Emissions
420i Coupé
M4 CS Coupé
Fuel Economy
48 mpg
combined
34 mpg
420i Coupé
48 mpg
34 mpg
M4 CS Coupé
37 mpg
city
25 mpg
No data
motorway
No data
60 L
Fuel Tank Capacity
60 L
632 mi
Range
444 mi
420i Coupé
632 mi
444 mi
M4 CS Coupé
Environmental Impact
111.8 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).
159.2 kWh
420i Coupé
111.8 kWh
159.2 kWh
M4 CS Coupé
Euro 6b (NEFZ)
Emission Standard
Euro 6b (NEFZ)
137 g/km (NEFZ)
CO2 Emissions
197 g/km (NEFZ)
Practical Convenience
420i Coupé
M4 CS Coupé
2
Doors
2
4
No. of Seats
4
445 kg
Maximum Payload
385 kg
445 L
Boot Capacity
445 L








No data
Boot Capacity (Seats Down)
No data



















