The Comparative Analysis :
BMW 420i Gran Coupé (17 - ..) vs. BMW 428i Gran Coupé (14 - 15)
€ 41,300

€ 41,400

€ 41,300
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 41,400
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The dimensions of the 420i Gran Coupé and the 428i Gran Coupé are absolutely identical. Both are 4638 mm long, 1825 mm wide and 1389 mm tall.
420i Gran Coupé
428i Gran Coupé
1389
1825
2017
1389
1825
2017
1825 mm
Width
1825 mm
2017 mm
Width Incl. Mirrors
2017 mm
1389 mm
Height
1389 mm
2810
4638
2810
4638
4638 mm
Length
4638 mm
2810 mm
Wheelbase
2810 mm
Vehicle Weight
420i Gran Coupé
428i Gran Coupé
1600 kg
Kerb Weight
1585 kg
2080 kg
Gross Vehicle
Weight
Weight
2070 kg

Weight Difference:
15 kg
0.94 %

General
420i Gran Coupé
428i Gran Coupé
F36
Generation
F36
Hatchback
Car Body Style
Hatchback
Super Unleaded (98 RON)
Fuel Type
Super Unleaded (98 RON)

Rear-wheel drive
Drive
Rear-wheel drive

6-speed manual transmission
Transmission
6-speed manual transmission
Engine
420i Gran Coupé
428i Gran Coupé
Straight-four petrol engine with turbocharger
Engine Type
Straight-four petrol engine with turbocharger
BMW B48
Engine Series
BMW N20
B48-B20
Engine Code
N20-B20


4
Valves
4
4
Cylinders
4
1998 CC
Engine Capacity
1997 CC
181 bhp
at 5000 rpm
Power
242 bhp
at 5000 rpm
420i Gran Coupé
181 bhp
242 bhp
428i Gran Coupé
270 NM
at 1350 rpm
Max. Torque
350 NM
at 1250 rpm
420i Gran Coupé
270 NM
350 NM
428i Gran Coupé
Performance
420i Gran Coupé
428i Gran Coupé
147 mph
Maximum Speed
155 mph
7.5 sec
Acceleration 0 to 62 mph
6.1 sec
62 mph
62
mph
mph
104 m
0.000 sec

420i Gran Coupé
62 mph
62
mph
mph
85 m
0.000 sec

428i Gran Coupé
▶ REPLAY
8.84 kg/bhp
Weight-to-Power Ratio
6.55 kg/bhp
420i Gran Coupé
8.84 kg/bhp
6.55 kg/bhp
428i Gran Coupé
Fuel Economy / Emissions
420i Gran Coupé
428i Gran Coupé
Fuel Economy
44 mpg
combined
43 mpg
420i Gran Coupé
44 mpg
43 mpg
428i Gran Coupé
34 mpg
city
32 mpg
No data
motorway
No data
60 L
Fuel Tank Capacity
60 L
583 mi
Range
565 mi
420i Gran Coupé
583 mi
565 mi
428i Gran Coupé
Environmental Impact
121.2 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).
125 kWh
420i Gran Coupé
121.2 kWh
125 kWh
428i Gran Coupé
Euro 6d-TEMP-EVAP-ISC (WLTP)
Emission Standard
Euro 6b (NEFZ)
169 g/km (WLTP)
CO2 Emissions
154 g/km (NEFZ)
Practical Convenience
420i Gran Coupé
428i Gran Coupé
5
Doors
5
5
No. of Seats
5
480 kg
Maximum Payload
485 kg
480 L
Boot Capacity
480 L










1300 L
Boot Capacity (Seats Down)
1300 L