2007 Opel Astra vs. 2004 Mazda 6
To start off, 2007 Opel Astra is newer by 3 year(s). Which means there will be less support and parts availability for 2004 Mazda 6. In addition, the cost of maintenance, including insurance, on 2004 Mazda 6 would be higher. At 1,999 cc (4 cylinders), 2004 Mazda 6 is equipped with a bigger engine. In terms of performance, 2004 Mazda 6 (144 HP @ 6000 RPM) has 21 more horse power than 2007 Opel Astra. (123 HP @ 5600 RPM) In normal driving conditions, 2004 Mazda 6 should accelerate faster than 2007 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2004 Mazda 6 weights approximately 126 kg more than 2007 Opel Astra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2004 Mazda 6 (181 Nm @ 4500 RPM) has 11 more torque (in Nm) than 2007 Opel Astra. (170 Nm @ 3800 RPM). This means 2004 Mazda 6 will have an easier job in driving up hills or pulling heavy equipment than 2007 Opel Astra.
Compare all specifications:
| 2007 Opel Astra | 2004 Mazda 6 | |
| Make | Opel | Mazda |
| Model | Astra | 6 |
| Year Released | 2007 | 2004 |
| Engine Position | Front | Front |
| Engine Size | 1796 cc | 1999 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 123 HP | 144 HP |
| Engine RPM | 5600 RPM | 6000 RPM |
| Torque | 170 Nm | 181 Nm |
| Torque RPM | 3800 RPM | 4500 RPM |
| Engine Bore Size | 80.5 mm | 87.5 mm |
| Engine Stroke Size | 88.2 mm | 83.1 mm |
| Engine Compression Ratio | 10.5:1 | 11.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 198 km/hour | 202 km/hour |
| Acceleration 0-100mph | 10.8 seconds | 9.9 seconds |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1284 kg | 1410 kg |
| Vehicle Length | 4260 mm | 4710 mm |
| Vehicle Width | 1760 mm | 1790 mm |
| Vehicle Height | 1470 mm | 1490 mm |
| Wheelbase Size | 2620 mm | 2610 mm |
| Fuel Consumption Overall | 7.7 L/100km | 8.7 L/100km |
| Fuel Tank Capacity | 52 L | 64 L |
