The Comparative Analysis :
BMW 420i Gran Coupé xDrive (17 - 18) vs. BMW 318d Gran Turismo Steptronic (14 - 15)
€ 43,600

€ 39,400

€ 43,600
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 39,400
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The 420i Gran Coupé is considerably smaller in every dimension. It's 18.6 cm shorter, 0.3 cm narrower and 10.4 cm lower than the 318d Gran Turismo.
420i Gran Coupé
318d Gran Turismo
1404
1825
2017
1508
1828
2047
1825 mm
Width
1828 mm
2017 mm
Width Incl. Mirrors
2047 mm
1404 mm
Height
1508 mm
2810
4638
2920
4824
4638 mm
Length
4824 mm
2810 mm
Wheelbase
2920 mm
Vehicle Weight
420i Gran Coupé
318d Gran Turismo
1675 kg
Kerb Weight
1635 kg
2160 kg
Gross Vehicle
Weight
Weight
2130 kg

Weight Difference:
40 kg
2.39 %

General
420i Gran Coupé
318d Gran Turismo
F36
Generation
F34
Hatchback
Car Body Style
Hatchback
Super Unleaded (98 RON)
Fuel Type
Diesel

Permanent all-wheel drive
Drive
Rear-wheel drive

6-speed manual transmission
Transmission
8-speed automatic transmission
Engine
420i Gran Coupé
318d Gran Turismo
Straight-four petrol engine with turbocharger
Engine Type
Straight-four diesel engine with turbocharger
BMW B48
Engine Series
BMW N47
B48-B20
Engine Code
N47-D20


4
Valves
4
4
Cylinders
4
1998 CC
Engine Capacity
1995 CC
181 bhp
at 5000 rpm
Power
141 bhp
at 4000 rpm
420i Gran Coupé
181 bhp
141 bhp
318d Gran Turismo
270 NM
at 1350 rpm
Max. Torque
320 NM
at 1750 rpm
420i Gran Coupé
270 NM
320 NM
318d Gran Turismo
Performance
420i Gran Coupé
318d Gran Turismo
145 mph
Maximum Speed
130 mph
7.8 sec
Acceleration 0 to 62 mph
9.6 sec
62 mph
62
mph
mph
108 m
0.000 sec

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

318d Gran Turismo
▶ REPLAY
9.25 kg/bhp
Weight-to-Power Ratio
11.6 kg/bhp
420i Gran Coupé
9.25 kg/bhp
11.6 kg/bhp
318d Gran Turismo
Fuel Economy / Emissions
420i Gran Coupé
318d Gran Turismo
Fuel Economy
43 mpg
combined
59 mpg
420i Gran Coupé
43 mpg
59 mpg
318d Gran Turismo
32 mpg
city
50 mpg
No data
motorway
No data
60 L
Fuel Tank Capacity
57 L
565 mi
Range
738 mi
420i Gran Coupé
565 mi
738 mi
318d Gran Turismo
Environmental Impact
125 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).
98.8 kWh
420i Gran Coupé
125 kWh
98.8 kWh
318d Gran Turismo
Euro 6b (NEFZ)
Emission Standard
Euro 6b (NEFZ)
154 g/km (NEFZ)
CO2 Emissions
127 g/km (NEFZ)
Practical Convenience
420i Gran Coupé
318d Gran Turismo
5
Doors
5
5
No. of Seats
5
485 kg
Maximum Payload
495 kg
480 L
Boot Capacity
520 L










1300 L
Boot Capacity (Seats Down)
1600 L