2005 Audi A4 vs. 2007 Opel Astra
To start off, 2007 Opel Astra is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Audi A4. In addition, the cost of maintenance, including insurance, on 2005 Audi A4 would be higher. At 1,998 cc, 2007 Opel Astra is equipped with a bigger engine. In terms of performance, 2007 Opel Astra (197 HP @ 5400 RPM) has 17 more horse power than 2005 Audi A4. (180 HP @ 5700 RPM) In normal driving conditions, 2007 Opel Astra should accelerate faster than 2005 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A4 weights approximately 90 kg more than 2007 Opel Astra.
Because 2005 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 2007 Opel Astra. In wet, icy, snow, or gravel driving conditions, 2005 Audi A4 will offer significantly more control. 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, 2007 Opel Astra (262 Nm @ 1950 RPM) has 22 more torque (in Nm) than 2005 Audi A4. (240 Nm @ 1950 RPM). This means 2007 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A4.
Compare all specifications:
| 2005 Audi A4 | 2007 Opel Astra | |
| Make | Audi | Opel |
| Model | A4 | Astra |
| Year Released | 2005 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 1781 cc | 1998 cc |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 180 HP | 197 HP |
| Engine RPM | 5700 RPM | 5400 RPM |
| Torque | 240 Nm | 262 Nm |
| Torque RPM | 1950 RPM | 1950 RPM |
| Engine Bore Size | 81 mm | 86 mm |
| Engine Stroke Size | 86.4 mm | 86 mm |
| Engine Compression Ratio | 9.3:1 | 8.8:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 234 km/hour | 234 km/hour |
| Acceleration 0-100mph | 8.3 seconds | 7.8 seconds |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1475 kg | 1385 kg |
| Vehicle Length | 4550 mm | 4300 mm |
| Vehicle Width | 1770 mm | 1760 mm |
| Vehicle Height | 1430 mm | 1440 mm |
| Wheelbase Size | 2660 mm | 2620 mm |
| Fuel Consumption Overall | 10 L/100km | 9.5 L/100km |
| Fuel Tank Capacity | 66 L | 52 L |
