The Comparative Analysis :
BMW 120i Steptronic 5-door (15 - 16) vs. BMW 123d Automatic (07 - 12)
€ 30,700
€ 34,200
€ 30,700
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 34,200
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The dimensions of these vehicles differ slightly. Both cars are the same height, but the 120i is 3.5 inches longer and 0.7 inches wider.
120i
123d
55.9
69.5
78.1
55.9
68.8
76.1
69.5 in
Width
68.8 in
78.1 in
Width Incl. Mirrors
76.1 in
55.9 in
Height
55.9 in
105.9
170.4
104.7
166.9
170.4 in
Length
166.9 in
105.9 in
Wheelbase
104.7 in
Vehicle Weight
120i
123d
3075 lb
Curb Weight
3274 lb
4156 lb
Gross Vehicle
Weight
Weight
4211 lb
Weight Difference:
198 lb
6.05 %
General
120i
123d
F20
Generation
E81
Hatchback
Car Body Style
Hatchback
Premium Unleaded
Fuel Type
Diesel
Rear-wheel drive
Drivetrain
Rear-wheel drive
8-speed automatic transmission
Transmission
6-speed automatic transmission
Engine
120i
123d
Straight-four gasoline engine with turbocharger
Engine Type
Straight-four diesel engine with two turbochargers (biturbo)
BMW
Engine Series
BMW
4
Valves
4
4
Cylinders
4
1.6 L / 78 cu in
Displacement
2 L / 98 cu in
175 hp
at 4800 rpm
Power
201 hp
at 4400 rpm
120i
175 hp
201 hp
123d
184 lb‑ft
at 1500 rpm
Max. Torque
295 lb‑ft
at 2000 rpm
120i
184 lb‑ft
295 lb‑ft
123d
Performance
120i
123d
138 mph
Maximum Speed
147 mph
7.2 sec
Acceleration 0 to 62 mph
7 sec
62 mph
62
mph
mph
328 ft
0.000 sec
120i
62 mph
62
mph
mph
318 ft
0.000 sec
123d
▶ REPLAY
17.57 lb/hp
Weight-to-Power Ratio
16.29 lb/hp
120i
17.57 lb/hp
16.29 lb/hp
123d
Fuel Economy / Emissions
120i
123d
Fuel Economy
42 mpg
combined
43 mpg
120i
42 mpg
43 mpg
123d
33 mpg
city
34 mpg
No data
highway
No data
13.7 gal
Fuel Tank Capacity
13.5 gal
577 mi
Range
576 mi
120i
577 mi
576 mi
123d
Environmental Impact
106.1 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).
113.1 kWh
120i
106.1 kWh
113.1 kWh
123d
Euro 6b (NEFZ)
Emission Standard
Euro 5
208 g/mi (NEFZ)
CO2 Emissions
233 g/mi (NEFZ)
Practical Convenience
120i
123d
5
Doors
3
5
No. of Seats
4
1080 lb
Maximum Payload
937 lb
10.2 cu ft
Trunk Volume
9.3 cu ft
34 cu ft
Cargo Volume (Seats Down)
32.6 cu ft
