2007 Audi A4 vs. 2005 Opel Astra
To start off, 2007 Audi A4 is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Opel Astra. In addition, the cost of maintenance, including insurance, on 2005 Opel Astra would be higher. At 2,967 cc (6 cylinders), 2007 Audi A4 is equipped with a bigger engine. In terms of performance, 2007 Audi A4 (222 HP @ 4000 RPM) has 77 more horse power than 2005 Opel Astra. (145 HP @ 6000 RPM). In normal driving conditions, 2007 Audi A4 should accelerate faster than 2005 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi A4 weights approximately 215 kg more than 2005 Opel Astra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Opel Astra. In wet, icy, snow, or gravel driving conditions, 2007 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 Audi A4 (450 Nm @ 1400 RPM) has 247 more torque (in Nm) than 2005 Opel Astra. (203 Nm @ 4000 RPM). This means 2007 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2005 Opel Astra.
Compare all specifications:
| 2007 Audi A4 | 2005 Opel Astra | |
| Make | Audi | Opel |
| Model | A4 | Astra |
| Year Released | 2007 | 2005 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2967 cc | 2172 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 222 HP | 145 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 450 Nm | 203 Nm |
| Torque RPM | 1400 RPM | 4000 RPM |
| Engine Compression Ratio | 17.0:1 | 10.0:1 |
| Acceleration 0-100mph | 7.4 seconds | 8.8 seconds |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1430 kg | 1215 kg |
| Wheelbase Size | 2660 mm | 2740 mm |
| Fuel Consumption Overall | 7.6 L/100km | 8.4 L/100km |
| Fuel Tank Capacity | 70 L | 52 L |
