2007 Audi A6 vs. 2005 Opel Astra
To start off, 2007 Audi A6 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 3,123 cc (6 cylinders), 2007 Audi A6 is equipped with a bigger engine. In terms of performance, 2007 Audi A6 (255 HP @ 6500 RPM) has 132 more horse power than 2005 Opel Astra. (123 HP @ 5800 RPM). In normal driving conditions, 2007 Audi A6 should accelerate faster than 2005 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi A6 weights approximately 697 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 A6 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 A6 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 A6 (330 Nm @ 3250 RPM) has 150 more torque (in Nm) than 2005 Opel Astra. (180 Nm @ 4400 RPM). This means 2007 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 2005 Opel Astra. 2007 Audi A6 has automatic transmission and 2005 Opel Astra has manual transmission. 2005 Opel Astra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Audi A6 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 Audi A6 | 2005 Opel Astra | |
| Make | Audi | Opel |
| Model | A6 | Astra |
| Year Released | 2007 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 3123 cc | 1997 cc |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 255 HP | 123 HP |
| Engine RPM | 6500 RPM | 5800 RPM |
| Torque | 330 Nm | 180 Nm |
| Torque RPM | 3250 RPM | 4400 RPM |
| Engine Compression Ratio | 11.3:1 | 9.6:1 |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1880 kg | 1183 kg |
| Wheelbase Size | 2850 mm | 2500 mm |
| Fuel Consumption Overall | 10.7 L/100km | 11.7 L/100km |
| Fuel Tank Capacity | 80 L | 52 L |
