The Comparative Analysis :
BMW 420i Gran Coupé xDrive Steptronic (17 - ..) vs. BMW 318d Gran Turismo Steptronic (18 - ..)
€ 45,900

€ 42,900

€ 45,900
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 42,900
ⓘ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 7.3 inches shorter, 0.1 inches narrower and 4.1 inches lower than the 318d Gran Turismo.
420i Gran Coupé
318d Gran Turismo
55.3
71.9
79.4
59.4
72
80.6
71.9 in
Width
72 in
79.4 in
Width Incl. Mirrors
80.6 in
55.3 in
Height
59.4 in
110.6
182.6
115
189.9
182.6 in
Length
189.9 in
110.6 in
Wheelbase
115 in
Vehicle Weight
420i Gran Coupé
318d Gran Turismo
3726 lb
Curb Weight
3781 lb
4795 lb
Gross Vehicle
Weight
Weight
4872 lb

Weight Difference:
55 lb
1.45 %

General
420i Gran Coupé
318d Gran Turismo
F36
Generation
F34
Hatchback
Car Body Style
Hatchback
Premium Unleaded
Fuel Type
Diesel

Permanent all-wheel drive (AWD)
Drivetrain
Rear-wheel drive

8-speed automatic transmission
Transmission
8-speed automatic transmission
Engine
420i Gran Coupé
318d Gran Turismo
Straight-four gasoline engine with turbocharger
Engine Type
Straight-four diesel engine with turbocharger
BMW B48
Engine Series
BMW B47
B48-B20
Engine Code
B47-D20


4
Valves
4
4
Cylinders
4
2 L / 98 cu in
Displacement
2 L / 98 cu in
181 hp
at 5000 rpm
Power
148 hp
at 4000 rpm
420i Gran Coupé
181 hp
148 hp
318d Gran Turismo
199 lb‑ft
at 1350 rpm
Max. Torque
236 lb‑ft
at 1500 rpm
420i Gran Coupé
199 lb‑ft
236 lb‑ft
318d Gran Turismo
Performance
420i Gran Coupé
318d Gran Turismo
144 mph
Maximum Speed
130 mph
8.1 sec
Acceleration 0 to 62 mph
9.3 sec
62 mph
62
mph
mph
371 ft
0.000 sec

420i Gran Coupé
62 mph
62
mph
mph
423 ft
0.000 sec

318d Gran Turismo
▶ REPLAY
20.59 lb/hp
Weight-to-Power Ratio
25.55 lb/hp
420i Gran Coupé
20.59 lb/hp
25.55 lb/hp
318d Gran Turismo
Fuel Economy / Emissions
420i Gran Coupé
318d Gran Turismo
Fuel Economy
36 mpg
combined
50 mpg
420i Gran Coupé
36 mpg
50 mpg
318d Gran Turismo
31 mpg
city
44 mpg
No data
highway
No data
15.9 gal
Fuel Tank Capacity
15.1 gal
565 mi
Range
754 mi
420i Gran Coupé
565 mi
754 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).
96.7 kWh
420i Gran Coupé
125 kWh
96.7 kWh
318d Gran Turismo
Euro 6d-TEMP-EVAP-ISC (WLTP)
Emission Standard
Euro 6d-TEMP-EVAP-ISC (WLTP)
288 g/mi (WLTP)
CO2 Emissions
248 g/mi (WLTP)
Practical Convenience
420i Gran Coupé
318d Gran Turismo
5
Doors
5
5
No. of Seats
5
1069 lb
Maximum Payload
1091 lb
13.6 cu ft
Trunk Volume
14.7 cu ft










36.8 cu ft
Cargo Volume (Seats Down)
45.3 cu ft