2006 Audi A4 vs. 2005 Opel Astra
To start off, 2006 Audi A4 is newer by 1 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 1,983 cc (4 cylinders), 2006 Audi A4 is equipped with a bigger engine. In terms of performance, 2006 Audi A4 (200 HP @ 5100 RPM) has 96 more horse power than 2005 Opel Astra. (104 HP @ 6000 RPM). In normal driving conditions, 2006 Audi A4 should accelerate faster than 2005 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi A4 weights approximately 670 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 2006 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, 2006 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, 2006 Audi A4 (281 Nm @ 1800 RPM) has 131 more torque (in Nm) than 2005 Opel Astra. (150 Nm @ 3900 RPM). This means 2006 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2005 Opel Astra.
Compare all specifications:
| 2006 Audi A4 | 2005 Opel Astra | |
| Make | Audi | Opel |
| Model | A4 | Astra |
| Year Released | 2006 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 1983 cc | 1597 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 200 HP | 104 HP |
| Engine RPM | 5100 RPM | 6000 RPM |
| Torque | 281 Nm | 150 Nm |
| Torque RPM | 1800 RPM | 3900 RPM |
| Engine Bore Size | 82.5 mm | 79 mm |
| Engine Stroke Size | 92.8 mm | 81.5 mm |
| Drive Type | 4WD | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1880 kg | 1210 kg |
| Vehicle Length | 4590 mm | 4260 mm |
| Vehicle Width | 1780 mm | 1760 mm |
| Vehicle Height | 1430 mm | 1470 mm |
| Wheelbase Size | 2660 mm | 2640 mm |
| Fuel Consumption Overall | 8.7 L/100km | 6.6 L/100km |
| Fuel Tank Capacity | 70 L | 52 L |
