2004 Audi A6 vs. 2009 Opel Astra
To start off, 2009 Opel Astra is newer by 5 year(s). Which means there will be less support and parts availability for 2004 Audi A6. In addition, the cost of maintenance, including insurance, on 2004 Audi A6 would be higher. At 1,998 cc (4 cylinders), 2009 Opel Astra is equipped with a bigger engine. In terms of performance, 2009 Opel Astra (239 HP @ 5600 RPM) has 91 more horse power than 2004 Audi A6. (148 HP @ 6000 RPM) In normal driving conditions, 2009 Opel Astra should accelerate faster than 2004 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi A6 weights approximately 147 kg more than 2009 Opel Astra.
Because 2004 Audi A6 is four wheel drive (4WD), it will have significant more traction and grip than 2009 Opel Astra. In wet, icy, snow, or gravel driving conditions, 2004 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, 2009 Opel Astra (320 Nm @ 2400 RPM) has 85 more torque (in Nm) than 2004 Audi A6. (235 Nm @ 1750 RPM). This means 2009 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 2004 Audi A6.
Compare all specifications:
| 2004 Audi A6 | 2009 Opel Astra | |
| Make | Audi | Opel |
| Model | A6 | Astra |
| Year Released | 2004 | 2009 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1799 cc | 1998 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 148 HP | 239 HP |
| Engine RPM | 6000 RPM | 5600 RPM |
| Torque | 235 Nm | 320 Nm |
| Torque RPM | 1750 RPM | 2400 RPM |
| Engine Bore Size | 81.1 mm | 86 mm |
| Engine Stroke Size | 86.4 mm | 86 mm |
| Engine Compression Ratio | 10.0:1 | 8.8:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 1540 kg | 1393 kg |
| Vehicle Length | 4800 mm | 4300 mm |
| Vehicle Width | 1820 mm | 1760 mm |
| Vehicle Height | 1460 mm | 1410 mm |
| Wheelbase Size | 2770 mm | 2620 mm |
| Fuel Tank Capacity | 70 L | 52 L |
