The Comparative Analysis :
BMW 318i Coupé (10 - 13) vs. BMW 420d Coupé Steptronic (17 - ..)
€ 31,700
€ 46,700
€ 31,700
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 46,700
ⓘ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. The 318i Coupé is an inch shorter, 1.7 inches narrower and 0.7 inches taller than the 420d Coupé.
318i Coupé
420d Coupé
54.9
70.2
78.1
54.2
71.9
79.4
70.2 in
Width
71.9 in
78.1 in
Width Incl. Mirrors
79.4 in
54.9 in
Height
54.2 in
108.7
181.6
110.6
182.6
181.6 in
Length
182.6 in
108.7 in
Wheelbase
110.6 in
Vehicle Weight
318i Coupé
420d Coupé
3164 lb
Curb Weight
3560 lb
3990 lb
Gross Vehicle
Weight
Weight
4553 lb
Weight Difference:
397 lb
11.15 %
General
318i Coupé
420d Coupé
E92
Generation
F32
Coupe
Car Body Style
Coupe
Premium Unleaded
Fuel Type
Diesel
Rear-wheel drive
Drivetrain
Rear-wheel drive
6-speed manual transmission
Transmission
8-speed automatic transmission
Engine
318i Coupé
420d Coupé
Straight-four gasoline engine (naturally aspirated engine)
Engine Type
Straight-four diesel engine with turbocharger
BMW N43
Engine Series
BMW B47
N43-B20
Engine Code
B47-D20
4
Valves
4
4
Cylinders
4
2 L / 98 cu in
Displacement
2 L / 98 cu in
141 hp
at 6000 rpm
Power
187 hp
at 4000 rpm
318i Coupé
141 hp
187 hp
420d Coupé
140 lb‑ft
at 4250 rpm
Max. Torque
295 lb‑ft
at 1750 rpm
318i Coupé
140 lb‑ft
295 lb‑ft
420d Coupé
Performance
318i Coupé
420d Coupé
130 mph
Maximum Speed
144 mph
9.1 sec
Acceleration 0 to 62 mph
7.2 sec
62 mph
62
mph
mph
413 ft
0.000 sec
318i Coupé
62 mph
62
mph
mph
328 ft
0.000 sec
420d Coupé
▶ REPLAY
22.44 lb/hp
Weight-to-Power Ratio
19.04 lb/hp
318i Coupé
22.44 lb/hp
19.04 lb/hp
420d Coupé
Fuel Economy / Emissions
318i Coupé
420d Coupé
Fuel Economy
37 mpg
combined
52 mpg
318i Coupé
37 mpg
52 mpg
420d Coupé
29 mpg
city
45 mpg
No data
highway
No data
16.6 gal
Fuel Tank Capacity
15.1 gal
621 mi
Range
787 mi
318i Coupé
621 mi
787 mi
420d Coupé
Environmental Impact
119.4 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).
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).
92.5 kWh
318i Coupé
119.4 kWh
92.5 kWh
420d Coupé
Euro 5
Emission Standard
Euro 6d-TEMP-EVAP-ISC (WLTP)
235 g/mi (NEFZ)
CO2 Emissions
238 g/mi (WLTP)
Practical Convenience
318i Coupé
420d Coupé
2
Doors
2
4
No. of Seats
4
827 lb
Maximum Payload
992 lb
12.5 cu ft
Trunk Volume
12.6 cu ft
No data
Cargo Volume (Seats Down)
No data
