2004 Audi A8 vs. 2008 Opel Astra
To start off, 2008 Opel Astra is newer by 4 year(s). Which means there will be less support and parts availability for 2004 Audi A8. In addition, the cost of maintenance, including insurance, on 2004 Audi A8 would be higher. At 2,966 cc (6 cylinders), 2004 Audi A8 is equipped with a bigger engine. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi A8 weights approximately 520 kg more than 2008 Opel Astra.
Because 2004 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2008 Opel Astra. In wet, icy, snow, or gravel driving conditions, 2004 Audi A8 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, 2004 Audi A8 (450 Nm @ 1400 RPM) has 280 more torque (in Nm) than 2008 Opel Astra. (170 Nm @ 3800 RPM). This means 2004 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2008 Opel Astra.
Compare all specifications:
| 2004 Audi A8 | 2008 Opel Astra | |
| Make | Audi | Opel |
| Model | A8 | Astra |
| Year Released | 2004 | 2008 |
| Engine Position | Front | Front |
| Engine Size | 2966 cc | 1796 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 230 HP | 0 HP |
| Torque | 450 Nm | 170 Nm |
| Torque RPM | 1400 RPM | 3800 RPM |
| Engine Bore Size | 83 mm | 80.5 mm |
| Engine Stroke Size | 91.4 mm | 88.2 mm |
| Engine Compression Ratio | 17.0:1 | 10.5:1 |
| Fuel Type | Diesel | Gasoline |
| Acceleration 0-100mph | 7.8 seconds | 12.2 seconds |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1830 kg | 1310 kg |
| Vehicle Length | 5060 mm | 3510 mm |
| Vehicle Height | 1450 mm | 1700 mm |
| Wheelbase Size | 2950 mm | 2620 mm |
| Fuel Consumption Overall | 8.4 L/100km | 8.4 L/100km |
| Fuel Tank Capacity | 90 L | 52 L |
