The Comparative Analysis :
Opel Astra 1.4 ECOTEC CNG (18 - 19) vs. Mazda 3 SKYACTIV-G 120 SKYACTIV-Drive (17 - 19)
€ 25,300

€ 23,100

€ 25,300
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 23,100
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The dimensions of these vehicles differ slightly. The Opel Astra 1.4 ECOTEC CNG is 10 cm shorter, 1.4 cm wider and 2 cm taller than the Mazda 3 SKYACTIV-G 120.
Opel Astra 1.4 ECOTEC CNG
Mazda 3 SKYACTIV-G 120
1485
1809
2042
1465
1795
2053
1809 mm
Width
1795 mm
2042 mm
Width Incl. Mirrors
2053 mm
1485 mm
Height
1465 mm
2662
4370
2700
4470
4370 mm
Length
4470 mm
2662 mm
Wheelbase
2700 mm
Vehicle Weight
Opel Astra 1.4 ECOTEC CNG
Mazda 3 SKYACTIV-G 120
1364 kg
Kerb Weight
1320 kg
1890 kg
Gross Vehicle
Weight
Weight
1835 kg

Weight Difference:
44 kg
3.23 %

General
Opel Astra 1.4 ECOTEC CNG
Mazda 3 SKYACTIV-G 120
B-K
Generation
BM
Hatchback
Car Body Style
Hatchback
Natural Gas (CNG)
Fuel Type
Unleaded (95 RON)

Front-wheel drive
Drive
Front-wheel drive

6-speed manual transmission
Transmission
6-speed automatic transmission
Engine
Opel Astra 1.4 ECOTEC CNG
Mazda 3 SKYACTIV-G 120
Straight-four engine (naturally aspirated engine)
Engine Type
Straight-four petrol engine (naturally aspirated engine)
4
Valves
4
4
Cylinders
4
1399 CC
Engine Capacity
1998 CC
108 bhp
at 5600 rpm
Power
118 bhp
at 6000 rpm
Opel Astra 1.4 ECOTEC CNG
108 bhp
118 bhp
Mazda 3 SKYACTIV-G 120
200 NM
at 2000 rpm
Max. Torque
210 NM
at 4000 rpm
Opel Astra 1.4 ECOTEC CNG
200 NM
210 NM
Mazda 3 SKYACTIV-G 120
Performance
Opel Astra 1.4 ECOTEC CNG
Mazda 3 SKYACTIV-G 120
121 mph
Maximum Speed
121 mph
10.9 sec
Acceleration 0 to 62 mph
10.4 sec
62 mph
62
mph
mph
151 m
0.000 sec

Opel Astra 1.4 ECOTEC CNG
62 mph
62
mph
mph
144 m
0.000 sec

Mazda 3 SKYACTIV-G 120
▶ REPLAY
12.63 kg/bhp
Weight-to-Power Ratio
11.19 kg/bhp
Opel Astra 1.4 ECOTEC CNG
12.63 kg/bhp
11.19 kg/bhp
Mazda 3 SKYACTIV-G 120
Fuel Economy / Emissions
Opel Astra 1.4 ECOTEC CNG
Mazda 3 SKYACTIV-G 120
Fuel Economy
10.1 kg✽
( 5 MPGe ⓘ Miles per gallon petrol equivalent (MPGe) is a measure of the average distance traveled per unit of energy consumed. MPGe, specified in miles per imperial gallon (~4.546 litres), is used to compare the energy consumption of vehicles that use different energy sources.)
combined ✽ per 100 miles
50 mpg
Opel Astra 1.4 ECOTEC CNG
5 MPGe
50 mpg
Mazda 3 SKYACTIV-G 120
13.4 kg
city
40 mpg
8.2 kg
motorway
59 mpg
19 kg
Fuel Tank Capacity
51 L
188 mi
Range
566 mi
Opel Astra 1.4 ECOTEC CNG
188 mi
566 mi
Mazda 3 SKYACTIV-G 120
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).
106.1 kWh
Opel Astra 1.4 ECOTEC CNG
46.2 kWh
106.1 kWh
Mazda 3 SKYACTIV-G 120
Euro 6d-TEMP (WLTP) 36AG-AI
Emission Standard
Euro 6b (NEFZ)
124 g/km (WLTP)
CO2 Emissions
129 g/km (NEFZ)
Practical Convenience
Opel Astra 1.4 ECOTEC CNG
Mazda 3 SKYACTIV-G 120
5
Doors
5
5
No. of Seats
5
526 kg
Maximum Payload
515 kg
370 L
Boot Capacity
364 L









1210 L
Boot Capacity (Seats Down)
1263 L