The Comparative Analysis :
BMW 120i Steptronic 5-door (15 - 16) vs. BMW M135i xDrive Steptronic Sport (15 - 16)
€ 30,700

€ 46,400

€ 30,700
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 46,400
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
Тhere is barely any difference in dimensions between the two vehicles. Both cars are the same width, but the 120i is 0.5 cm longer and 1 cm taller.
120i
M135i
1421
1765
1984
1411
1765
1984
1765 mm
Width
1765 mm
1984 mm
Width Incl. Mirrors
1984 mm
1421 mm
Height
1411 mm
2690
4329
2690
4324
4329 mm
Length
4324 mm
2690 mm
Wheelbase
2690 mm
Vehicle Weight
120i
M135i
1395 kg
Kerb Weight
1590 kg
1885 kg
Gross Vehicle
Weight
Weight
2065 kg

Weight Difference:
195 kg
12.26 %

General
120i
M135i
F20
Generation
F21
Hatchback
Car Body Style
Hatchback
Super Unleaded (98 RON)
Fuel Type
Super Unleaded (98 RON)

Rear-wheel drive
Drive
Permanent all-wheel drive

8-speed automatic transmission
Transmission
8-speed automatic transmission
Engine
120i
M135i
Straight-four petrol engine with turbocharger
Engine Type
Straight-six petrol engine with turbocharger
BMW
Engine Series
BMW
4
Valves
4
4
Cylinders
6
1598 CC
Engine Capacity
2979 CC
175 bhp
at 4800 rpm
Power
322 bhp
at 5800 rpm
120i
175 bhp
322 bhp
M135i
250 NM
at 1500 rpm
Max. Torque
450 NM
at 1300 rpm
120i
250 NM
450 NM
M135i
Performance
120i
M135i
138 mph
Maximum Speed
155 mph
7.2 sec
Acceleration 0 to 62 mph
4.7 sec
62 mph
62
mph
mph
100 m
0.000 sec

120i
62 mph
62
mph
mph
65 m
0.000 sec

M135i
▶ REPLAY
7.97 kg/bhp
Weight-to-Power Ratio
4.94 kg/bhp
120i
7.97 kg/bhp
4.94 kg/bhp
M135i
Fuel Economy / Emissions
120i
M135i
Fuel Economy
50 mpg
combined
36 mpg
120i
50 mpg
36 mpg
M135i
40 mpg
city
26 mpg
No data
motorway
No data
52 L
Fuel Tank Capacity
52 L
577 mi
Range
414 mi
120i
577 mi
414 mi
M135i
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).
147.7 kWh
120i
106.1 kWh
147.7 kWh
M135i
Euro 6b (NEFZ)
Emission Standard
Euro 6b (NEFZ)
129 g/km (NEFZ)
CO2 Emissions
182 g/km (NEFZ)
Practical Convenience
120i
M135i
5
Doors
3
5
No. of Seats
4
490 kg
Maximum Payload
475 kg
360 L
Boot Capacity
360 L








1200 L
Boot Capacity (Seats Down)
1200 L