The Comparative Analysis :
Opel Astra 1.4 ECOTEC CNG (18 - 19) vs. BMW 120i (17 - 19)
€ 25,300

€ 31,200

€ 25,300
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 31,200
ⓘ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 120i.
Opel Astra 1.4 ECOTEC CNG
BMW 120i
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 120i
3007 lb
Curb Weight
3175 lb
4167 lb
Gross Vehicle
Weight
Weight
4255 lb

Weight Difference:
168 lb
5.29 %

General
Opel Astra 1.4 ECOTEC CNG
BMW 120i
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
6-speed manual transmission
Engine
Opel Astra 1.4 ECOTEC CNG
BMW 120i
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
181 hp
at 5000 rpm
Opel Astra 1.4 ECOTEC CNG
108 hp
181 hp
BMW 120i
148 lb‑ft
at 2000 rpm
Max. Torque
214 lb‑ft
at 1350 rpm
Opel Astra 1.4 ECOTEC CNG
148 lb‑ft
214 lb‑ft
BMW 120i
Performance
Opel Astra 1.4 ECOTEC CNG
BMW 120i
121 mph
Maximum Speed
143 mph
10.9 sec
Acceleration 0 to 62 mph
7.1 sec
62 mph
62
mph
mph
495 ft
0.000 sec

Opel Astra 1.4 ECOTEC CNG
62 mph
62
mph
mph
325 ft
0.000 sec

BMW 120i
▶ REPLAY
27.84 lb/hp
Weight-to-Power Ratio
17.54 lb/hp
Opel Astra 1.4 ECOTEC CNG
27.84 lb/hp
17.54 lb/hp
BMW 120i
Fuel Economy / Emissions
Opel Astra 1.4 ECOTEC CNG
BMW 120i
Fuel Economy
22.4 lb✽
( 4 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
41 mpg
Opel Astra 1.4 ECOTEC CNG
4 MPGe
41 mpg
BMW 120i
29.4 lb
city
31 mpg
18.1 lb
highway
No data
42 lb
Fuel Tank Capacity
13.7 gal
188 mi
Range
567 mi
Opel Astra 1.4 ECOTEC CNG
188 mi
567 mi
BMW 120i
Environmental Impact
46.2 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).
108 kWh
Opel Astra 1.4 ECOTEC CNG
46.2 kWh
108 kWh
BMW 120i
Euro 6d-TEMP (WLTP) 36AG-AI
Emission Standard
Euro 6b (NEFZ)
200 g/mi (WLTP)
CO2 Emissions
211 g/mi (NEFZ)
Practical Convenience
Opel Astra 1.4 ECOTEC CNG
BMW 120i
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