2008 Audi A4 vs. 2009 Opel Astra
To start off, 2009 Opel Astra is newer by 1 year(s). Which means there will be less support and parts availability for 2008 Audi A4. In addition, the cost of maintenance, including insurance, on 2008 Audi A4 would be higher. At 2,965 cc (6 cylinders), 2008 Audi A4 is equipped with a bigger engine. In terms of performance, 2008 Audi A4 (222 HP @ 4000 RPM) has 25 more horse power than 2009 Opel Astra. (197 HP @ 5400 RPM). In normal driving conditions, 2008 Audi A4 should accelerate faster than 2009 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2009 Opel Astra weights approximately 195 kg more than 2008 Audi A4.
Because 2008 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 2009 Opel Astra. In wet, icy, snow, or gravel driving conditions, 2008 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, 2008 Audi A4 (450 Nm @ 1400 RPM) has 188 more torque (in Nm) than 2009 Opel Astra. (262 Nm @ 1950 RPM). This means 2008 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2009 Opel Astra.
Compare all specifications:
| 2008 Audi A4 | 2009 Opel Astra | |
| Make | Audi | Opel |
| Model | A4 | Astra |
| Year Released | 2008 | 2009 |
| Engine Position | Front | Front |
| Engine Size | 2965 cc | 1998 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 222 HP | 197 HP |
| Engine RPM | 4000 RPM | 5400 RPM |
| Torque | 450 Nm | 262 Nm |
| Torque RPM | 1400 RPM | 1950 RPM |
| Engine Compression Ratio | 17.0:1 | 8.8:1 |
| Fuel Type | Diesel | Gasoline |
| Top Speed | 231 km/hour | 234 km/hour |
| Acceleration 0-100mph | 7.4 seconds | 8.1 seconds |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1430 kg | 1625 kg |
| Vehicle Length | 4550 mm | 4300 mm |
| Vehicle Width | 1780 mm | 1760 mm |
| Vehicle Height | 1430 mm | 1440 mm |
| Wheelbase Size | 2660 mm | 2620 mm |
| Fuel Consumption Overall | 7.5 L/100km | 9.3 L/100km |
| Fuel Tank Capacity | 70 L | 52 L |
