2007 Audi A4 vs. 2006 Opel Astra
To start off, 2007 Audi A4 is newer by 1 year(s). Which means there will be less support and parts availability for 2006 Opel Astra. In addition, the cost of maintenance, including insurance, on 2006 Opel Astra would be higher. At 1,780 cc (4 cylinders), 2007 Audi A4 is equipped with a bigger engine. In terms of performance, 2007 Audi A4 (161 HP @ 5700 RPM) has 72 more horse power than 2006 Opel Astra. (89 HP @ 5600 RPM). In normal driving conditions, 2007 Audi A4 should accelerate faster than 2006 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi A4 weights approximately 240 kg more than 2006 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 2006 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 (225 Nm @ 1950 RPM) has 100 more torque (in Nm) than 2006 Opel Astra. (125 Nm @ 4000 RPM). This means 2007 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2006 Opel Astra.
Compare all specifications:
| 2007 Audi A4 | 2006 Opel Astra | |
| Make | Audi | Opel |
| Model | A4 | Astra |
| Year Released | 2007 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 1780 cc | 1364 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 161 HP | 89 HP |
| Engine RPM | 5700 RPM | 5600 RPM |
| Torque | 225 Nm | 125 Nm |
| Torque RPM | 1950 RPM | 4000 RPM |
| Engine Compression Ratio | 9.3:1 | 10.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 226 km/hour | 173 km/hour |
| Acceleration 0-100mph | 8.7 seconds | 13.7 seconds |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1470 kg | 1230 kg |
| Vehicle Length | 4550 mm | 4260 mm |
| Vehicle Width | 1780 mm | 1760 mm |
| Vehicle Height | 1430 mm | 1470 mm |
| Wheelbase Size | 2650 mm | 2620 mm |
| Fuel Consumption Overall | 9.2 L/100km | 6.3 L/100km |
| Fuel Tank Capacity | 63 L | 52 L |
