2009 Audi A6 vs. 2006 Opel Astra
To start off, 2009 Audi A6 is newer by 3 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 3,129 cc (6 cylinders), 2009 Audi A6 is equipped with a bigger engine. In terms of performance, 2009 Audi A6 (342 HP @ 6500 RPM) has 194 more horse power than 2006 Opel Astra. (148 HP @ 4000 RPM). In normal driving conditions, 2009 Audi A6 should accelerate faster than 2006 Opel Astra.
Because 2009 Audi A6 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, 2009 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, 2006 Opel Astra (320 Nm @ 2000 RPM) has 77 more torque (in Nm) than 2009 Audi A6. (243 Nm @ 3250 RPM). This means 2006 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A6.
Compare all specifications:
| 2009 Audi A6 | 2006 Opel Astra | |
| Make | Audi | Opel |
| Model | A6 | Astra |
| Year Released | 2009 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 3129 cc | 1910 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 342 HP | 148 HP |
| Engine RPM | 6500 RPM | 4000 RPM |
| Torque | 243 Nm | 320 Nm |
| Torque RPM | 3250 RPM | 2000 RPM |
| Engine Bore Size | 84.6 mm | 83 mm |
| Engine Stroke Size | 92.7 mm | 92 mm |
| Engine Compression Ratio | 12.5:1 | 17.5:1 |
| Fuel Type | Gasoline | Diesel |
| Drive Type | 4WD | Front |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Width | 1470 mm | 1760 mm |
