The Comparative Analysis :
BMW M135i (12 - 15) vs. BMW 125i Steptronic (17 - 19)
€ 39,900
€ 38,400
€ 39,900
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 38,400
ⓘ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 M135i is 0.5 cm shorter and 1 cm lower.
M135i
125i
1411
1765
1984
1421
1765
1984
1765 mm
Width
1765 mm
1984 mm
Width Incl. Mirrors
1984 mm
1411 mm
Height
1421 mm
2690
4324
2690
4329
4324 mm
Length
4329 mm
2690 mm
Wheelbase
2690 mm
Vehicle Weight
M135i
125i
1500 kg
Kerb Weight
1475 kg
1955 kg
Gross Vehicle
Weight
Weight
1965 kg
Weight Difference:
25 kg
1.67 %
General
M135i
125i
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

6-speed manual transmission
Transmission
8-speed automatic transmission
Engine
M135i
125i
Straight-six petrol engine with turbocharger
Engine Type
Straight-four petrol engine with turbocharger
BMW
Engine Series
BMW
4
Valves
4
6
Cylinders
4
2979 CC
Engine Capacity
1998 CC
316 bhp
at 5800 rpm
Power
221 bhp
at 5200 rpm
M135i
316 bhp
221 bhp
125i
450 NM
at 1300 rpm
Max. Torque
310 NM
at 1400 rpm
M135i
450 NM
310 NM
125i
Performance
M135i
125i
155 mph
Maximum Speed
151 mph
5.1 sec
Acceleration 0 to 62 mph
6.1 sec
62 mph
62
mph
mph
71 m
0.000 sec
M135i
62 mph
62
mph
mph
85 m
0.000 sec
125i
▶ REPLAY
4.75 kg/bhp
Weight-to-Power Ratio
6.67 kg/bhp
M135i
4.75 kg/bhp
6.67 kg/bhp
125i
Fuel Economy / Emissions
M135i
125i
Fuel Economy
35 mpg
combined
46 mpg
M135i
35 mpg
46 mpg
125i
26 mpg
city
38 mpg
No data
motorway
No data
52 L
Fuel Tank Capacity
52 L
404 mi
Range
521 mi
M135i
404 mi
521 mi
125i
Environmental Impact
151.6 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).
117.5 kWh
M135i
151.6 kWh
117.5 kWh
125i
Euro 5
Emission Standard
Euro 6d-TEMP-EVAP (WLTP)
188 g/km (NEFZ)
CO2 Emissions
175 g/km (WLTP)
Practical Convenience
M135i
125i
3
Doors
3
4
No. of Seats
4
455 kg
Maximum Payload
490 kg
360 L
Boot Capacity
360 L








1200 L
Boot Capacity (Seats Down)
1200 L
















