2009 Audi A8 vs. 2004 Opel Astra
To start off, 2009 Audi A8 is newer by 5 year(s). Which means there will be less support and parts availability for 2004 Opel Astra. In addition, the cost of maintenance, including insurance, on 2004 Opel Astra would be higher. At 2,772 cc (6 cylinders), 2009 Audi A8 is equipped with a bigger engine. In terms of performance, 2009 Audi A8 (207 HP @ 5500 RPM) has 104 more horse power than 2004 Opel Astra. (103 HP @ 6000 RPM). In normal driving conditions, 2009 Audi A8 should accelerate faster than 2004 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A8 weights approximately 315 kg more than 2004 Opel Astra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. 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 Audi A8 (280 Nm @ 3000 RPM) has 130 more torque (in Nm) than 2004 Opel Astra. (150 Nm @ 3900 RPM). This means 2009 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2004 Opel Astra.
Compare all specifications:
| 2009 Audi A8 | 2004 Opel Astra | |
| Make | Audi | Opel |
| Model | A8 | Astra |
| Year Released | 2009 | 2004 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 2772 cc | 1598 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 207 HP | 103 HP |
| Engine RPM | 5500 RPM | 6000 RPM |
| Torque | 280 Nm | 150 Nm |
| Torque RPM | 3000 RPM | 3900 RPM |
| Engine Bore Size | 84.5 mm | 79 mm |
| Engine Stroke Size | 82.4 mm | 81.5 mm |
| Engine Compression Ratio | 12.5:1 | 10.5:1 |
| Top Speed | 238 km/hour | 185 km/hour |
| Acceleration 0-100mph | 8 seconds | 12.7 seconds |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1690 kg | 1375 kg |
| Vehicle Length | 5070 mm | 4290 mm |
| Vehicle Width | 1900 mm | 1720 mm |
| Vehicle Height | 1450 mm | 1470 mm |
| Wheelbase Size | 2950 mm | 2700 mm |
| Fuel Consumption Overall | 8.3 L/100km | 6.7 L/100km |
| Fuel Tank Capacity | 90 L | 52 L |
