The Comparative Analysis :
Opel Astra 1.4 ECOTEC CNG (17 - 18) vs. Mazda 3 2.0 Automatic (09 - 11)
€ 25,100

€ 24,100

€ 25,100
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 24,100
ⓘ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 3.5 inches shorter, 2.1 inches wider and 0.6 inches taller than the Mazda 3 2.0.
Opel Astra 1.4 ECOTEC CNG
Mazda 3 2.0
58.5
71.2
80.4
57.9
69.1
77
71.2 in
Width
69.1 in
80.4 in
Width Incl. Mirrors
77 in
58.5 in
Height
57.9 in
104.8
172
103.9
175.6
172 in
Length
175.6 in
104.8 in
Wheelbase
103.9 in
Vehicle Weight
Opel Astra 1.4 ECOTEC CNG
Mazda 3 2.0
3007 lb
Curb Weight
2954 lb
4167 lb
Gross Vehicle
Weight
Weight
4045 lb

Weight Difference:
53 lb
1.76 %

General
Opel Astra 1.4 ECOTEC CNG
Mazda 3 2.0
B-K
Generation
BL
Hatchback
Car Body Style
Hatchback
Natural Gas (CNG)
Fuel Type
Mid-Grade Unleaded

Front-wheel drive
Drivetrain
Front-wheel drive

6-speed manual transmission
Transmission
5-speed automatic transmission
Engine
Opel Astra 1.4 ECOTEC CNG
Mazda 3 2.0
Straight-four engine (naturally aspirated engine)
Engine Type
Straight-four gasoline engine (naturally aspirated engine)
4
Valves
4
4
Cylinders
4
1.4 L / 69 cu in
Displacement
2 L / 98 cu in
108 hp
at 5600 rpm
Power
148 hp
at 6500 rpm
Opel Astra 1.4 ECOTEC CNG
108 hp
148 hp
Mazda 3 2.0
148 lb‑ft
at 2000 rpm
Max. Torque
138 lb‑ft
at 4000 rpm
Opel Astra 1.4 ECOTEC CNG
148 lb‑ft
138 lb‑ft
Mazda 3 2.0
Performance
Opel Astra 1.4 ECOTEC CNG
Mazda 3 2.0
124 mph
Maximum Speed
127 mph
10.9 sec
Acceleration 0 to 62 mph
10.6 sec
62 mph
62
mph
mph
495 ft
0.000 sec

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

Mazda 3 2.0
▶ REPLAY
27.84 lb/hp
Weight-to-Power Ratio
19.96 lb/hp
Opel Astra 1.4 ECOTEC CNG
27.84 lb/hp
19.96 lb/hp
Mazda 3 2.0
Fuel Economy / Emissions
Opel Astra 1.4 ECOTEC CNG
Mazda 3 2.0
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
31 mpg
Opel Astra 1.4 ECOTEC CNG
6 MPGe
31 mpg
Mazda 3 2.0
19.9 lb
city
22 mpg
11.7 lb
highway
41 mpg
42 lb
Fuel Tank Capacity
14.5 gal
288 mi
Range
450 mi
Opel Astra 1.4 ECOTEC CNG
288 mi
450 mi
Mazda 3 2.0
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).
144 kWh
Opel Astra 1.4 ECOTEC CNG
30.1 kWh
144 kWh
Mazda 3 2.0
Euro 6b (NEFZ)
Emission Standard
Euro 5
182 g/mi (NEFZ)
CO2 Emissions
282 g/mi (NEFZ)
Practical Convenience
Opel Astra 1.4 ECOTEC CNG
Mazda 3 2.0
5
Doors
5
5
No. of Seats
5
1160 lb
Maximum Payload
1091 lb
10.5 cu ft
Trunk Volume
9.6 cu ft









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