The Comparative Analysis :
Opel Astra 1.4 ECOTEC CNG (17 - 18) vs. BMW 125i Steptronic (17 - 19)
€ 25,100
€ 38,400
€ 25,100
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
The Opel Astra 1.4 ECOTEC CNG is slightly bigger in every dimension. It's 1.6 inches longer, 1.7 inches wider and 2.5 inches taller than the BMW 125i.
Opel Astra 1.4 ECOTEC CNG
BMW 125i
58.5
71.2
80.4
55.9
69.5
78.1
71.2 in
Width
69.5 in
80.4 in
Width Incl. Mirrors
78.1 in
58.5 in
Height
55.9 in
104.8
172
105.9
170.4
172 in
Length
170.4 in
104.8 in
Wheelbase
105.9 in
Vehicle Weight
Opel Astra 1.4 ECOTEC CNG
BMW 125i
3007 lb
Curb Weight
3252 lb
4167 lb
Gross Vehicle
Weight
Weight
4332 lb
Weight Difference:
245 lb
7.53 %
General
Opel Astra 1.4 ECOTEC CNG
BMW 125i
B-K
Generation
F21
Hatchback
Car Body Style
Hatchback
Natural Gas (CNG)
Fuel Type
Premium Unleaded

Front-wheel drive
Drivetrain
Rear-wheel drive

6-speed manual transmission
Transmission
8-speed automatic transmission
Engine
Opel Astra 1.4 ECOTEC CNG
BMW 125i
Straight-four engine (naturally aspirated engine)
Engine Type
Straight-four gasoline engine with turbocharger
Engine Series
BMW
4
Valves
4
4
Cylinders
4
1.4 L / 69 cu in
Displacement
2 L / 98 cu in
108 hp
at 5600 rpm
Power
221 hp
at 5200 rpm
Opel Astra 1.4 ECOTEC CNG
108 hp
221 hp
BMW 125i
148 lb‑ft
at 2000 rpm
Max. Torque
229 lb‑ft
at 1400 rpm
Opel Astra 1.4 ECOTEC CNG
148 lb‑ft
229 lb‑ft
BMW 125i
Performance
Opel Astra 1.4 ECOTEC CNG
BMW 125i
124 mph
Maximum Speed
151 mph
10.9 sec
Acceleration 0 to 62 mph
6.1 sec
62 mph
62
mph
mph
495 ft
0.000 sec
Opel Astra 1.4 ECOTEC CNG
62 mph
62
mph
mph
279 ft
0.000 sec
BMW 125i
▶ REPLAY
27.84 lb/hp
Weight-to-Power Ratio
14.71 lb/hp
Opel Astra 1.4 ECOTEC CNG
27.84 lb/hp
14.71 lb/hp
BMW 125i
Fuel Economy / Emissions
Opel Astra 1.4 ECOTEC CNG
BMW 125i
Fuel Economy
14.5 lb✽
( 6 MPGe ⓘ Miles per gallon gasoline equivalent (MPGe) is a measure of the average distance traveled per unit of energy consumed. MPGe, specified in miles per U.S. gallon, is used to compare the energy consumption of vehicles that use different energy sources.)
combined ✽ per 100 miles
38 mpg
Opel Astra 1.4 ECOTEC CNG
6 MPGe
38 mpg
BMW 125i
19.9 lb
city
32 mpg
11.7 lb
highway
No data
42 lb
Fuel Tank Capacity
13.7 gal
288 mi
Range
521 mi
Opel Astra 1.4 ECOTEC CNG
288 mi
521 mi
BMW 125i
Environmental Impact
30.1 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).
117.5 kWh
Opel Astra 1.4 ECOTEC CNG
30.1 kWh
117.5 kWh
BMW 125i
Euro 6b (NEFZ)
Emission Standard
Euro 6d-TEMP-EVAP (WLTP)
182 g/mi (NEFZ)
CO2 Emissions
282 g/mi (WLTP)
Practical Convenience
Opel Astra 1.4 ECOTEC CNG
BMW 125i
5
Doors
3
5
No. of Seats
4
1160 lb
Maximum Payload
1080 lb
10.5 cu ft
Trunk Volume
10.2 cu ft









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













