The Comparative Analysis :

BMW 120i Steptronic (16 - 17) vs. BMW M135i Steptronic Sport (15 - 16)

€ 31,800
BMW 120i Steptronic (16 - 17) 120i
€ 44,500
 BMW M135i Steptronic Sport (15 - 16) M135i
€ 31,800
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 44,500

ⓘ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
Blueprint BMW 120i Steptronic (16 - 17)
1765
1984
1411
Blueprint BMW M135i Steptronic Sport (15 - 16)
1765
1984
1765 mm
Width
1765 mm
1984 mm
Width Incl. Mirrors
1984 mm
1421 mm
Height
1411 mm
Blueprint BMW 120i Steptronic (16 - 17)
2690
4329
Blueprint BMW M135i Steptronic Sport (15 - 16)
2690
4324
4329 mm
Length
4324 mm
2690 mm
Wheelbase
2690 mm

Vehicle Weight

120i
M135i
1450 kg
Kerb Weight
1520 kg
1940 kg
Gross Vehicle
Weight
2010 kg
BMW 120i Steptronic (16 - 17)
Weight Difference:
70 kg
4.61 %
BMW M135i Steptronic Sport (15 - 16)

General

120i
M135i
F21
Generation
F21
Hatchback
Car Body Style
Hatchback
Super Unleaded (98 RON)
Fuel Type
Super Unleaded (98 RON)
Rear-wheel drive
Drive
Rear-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
1998 CC
Engine Capacity
2979 CC
181 bhp
at 5000 rpm
Power
322 bhp
at 5800 rpm
120i
181 bhp
322 bhp
M135i
290 NM
at 1350 rpm
Max. Torque
450 NM
at 1300 rpm
120i
290 NM
450 NM
M135i

Performance

120i
M135i
140 mph
Maximum Speed
155 mph
7.1 sec
Acceleration 0 to 62 mph
4.9 sec
62 mph 62
mph

99 m
0.000 sec

120i

62 mph 62
mph

68 m
0.000 sec

M135i

▶ REPLAY
8.01 kg/bhp
Weight-to-Power Ratio
4.72 kg/bhp
120i
8.01 kg/bhp
4.72 kg/bhp
M135i

Fuel Economy / Emissions

120i
M135i
Fuel Economy
51 mpg
combined
38 mpg
120i
51 mpg
38 mpg
M135i
40 mpg
city
27 mpg
No data
motorway
No data
Kraftstoffanzeige
52 L
Fuel Tank Capacity
52 L
Kraftstoffanzeige
587 mi
Range
431 mi
120i
587 mi
431 mi
M135i
Environmental Impact
104.1 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).
142.1 kWh
120i
104.1 kWh
142.1 kWh
M135i
Euro 6b (NEFZ)
Emission Standard
Euro 6b (NEFZ)
126 g/km (NEFZ)
CO2 Emissions
175 g/km (NEFZ)

Practical Convenience

120i
M135i
3
Doors
3
4
No. of Seats
4
490 kg
Maximum Payload
490 kg
360 L
Boot Capacity
360 L
1200 L
Boot Capacity (Seats Down)
1200 L