The Comparative Analysis :
BMW 125i Steptronic 5-door (12 - 15) vs. BMW M135i Steptronic (12 - 15)
€ 35,000

€ 42,100

€ 35,000
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 42,100
ⓘ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 length and width, but the 125i is 0.4 inches taller.
125i
M135i
55.9
69.5
78.1
55.6
69.5
78.1
69.5 in
Width
69.5 in
78.1 in
Width Incl. Mirrors
78.1 in
55.9 in
Height
55.6 in
105.9
170.2
105.9
170.2
170.2 in
Length
170.2 in
105.9 in
Wheelbase
105.9 in
Vehicle Weight
125i
M135i
3197 lb
Curb Weight
3340 lb
4200 lb
Gross Vehicle
Weight
Weight
4343 lb

Weight Difference:
143 lb
4.28 %

General
125i
M135i
F20
Generation
F21
Hatchback
Car Body Style
Hatchback
Premium Unleaded
Fuel Type
Premium Unleaded

Rear-wheel drive
Drivetrain
Rear-wheel drive

8-speed automatic transmission
Transmission
8-speed automatic transmission
Engine
125i
M135i
Straight-four gasoline engine with turbocharger
Engine Type
Straight-six gasoline engine with turbocharger
BMW
Engine Series
BMW
4
Valves
4
4
Cylinders
6
2 L / 98 cu in
Displacement
3 L / 147 cu in
215 hp
at 5000 rpm
Power
316 hp
at 5800 rpm
125i
215 hp
316 hp
M135i
229 lb‑ft
at 1350 rpm
Max. Torque
332 lb‑ft
at 1300 rpm
125i
229 lb‑ft
332 lb‑ft
M135i
Performance
125i
M135i
151 mph
Maximum Speed
155 mph
6.5 sec
Acceleration 0 to 62 mph
4.9 sec
62 mph
62
mph
mph
295 ft
0.000 sec

125i
62 mph
62
mph
mph
223 ft
0.000 sec

M135i
▶ REPLAY
14.87 lb/hp
Weight-to-Power Ratio
10.57 lb/hp
125i
14.87 lb/hp
10.57 lb/hp
M135i
Fuel Economy / Emissions
125i
M135i
Fuel Economy
37 mpg
combined
31 mpg
125i
37 mpg
31 mpg
M135i
28 mpg
city
23 mpg
No data
highway
No data
13.7 gal
Fuel Tank Capacity
13.7 gal
513 mi
Range
431 mi
125i
513 mi
431 mi
M135i
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).
142.1 kWh
125i
119.4 kWh
142.1 kWh
M135i
Euro 6b (NEFZ)
Emission Standard
Euro 5
238 g/mi (NEFZ)
CO2 Emissions
282 g/mi (NEFZ)
Practical Convenience
125i
M135i
5
Doors
3
5
No. of Seats
4
1003 lb
Maximum Payload
1003 lb
10.2 cu ft
Trunk Volume
10.2 cu ft








34 cu ft
Cargo Volume (Seats Down)
34 cu ft