The Comparative Analysis :
BMW 125i Steptronic (15 - 16) vs. BMW M140i Steptronic Sport (16 - 17)
€ 33,600

€ 44,800

€ 33,600
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 44,800
ⓘ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 125i is 0.2 inches longer and 0.4 inches taller.
125i
M140i
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
170.4
105.9
170.2
170.4 in
Length
170.2 in
105.9 in
Wheelbase
105.9 in
Vehicle Weight
125i
M140i
3186 lb
Curb Weight
3406 lb
4266 lb
Gross Vehicle
Weight
Weight
4486 lb

Weight Difference:
220 lb
6.46 %

General
125i
M140i
F21
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
M140i
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
335 hp
at 5500 rpm
125i
215 hp
335 hp
M140i
229 lb‑ft
at 1350 rpm
Max. Torque
369 lb‑ft
at 1250 rpm
125i
229 lb‑ft
369 lb‑ft
M140i
Performance
125i
M140i
151 mph
Maximum Speed
155 mph
6.2 sec
Acceleration 0 to 62 mph
4.6 sec
62 mph
62
mph
mph
282 ft
0.000 sec

125i
62 mph
62
mph
mph
210 ft
0.000 sec

M140i
▶ REPLAY
14.82 lb/hp
Weight-to-Power Ratio
10.17 lb/hp
125i
14.82 lb/hp
10.17 lb/hp
M140i
Fuel Economy / Emissions
125i
M140i
Fuel Economy
37 mpg
combined
33 mpg
125i
37 mpg
33 mpg
M140i
28 mpg
city
25 mpg
No data
highway
No data
13.7 gal
Fuel Tank Capacity
13.7 gal
513 mi
Range
455 mi
125i
513 mi
455 mi
M140i
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).
134.5 kWh
125i
119.4 kWh
134.5 kWh
M140i
Euro 6b (NEFZ)
Emission Standard
Euro 6b (NEFZ)
238 g/mi (NEFZ)
CO2 Emissions
262 g/mi (NEFZ)
Practical Convenience
125i
M140i
3
Doors
3
4
No. of Seats
4
1080 lb
Maximum Payload
1080 lb
10.2 cu ft
Trunk Volume
10.2 cu ft








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