2008 Audi A8 vs. 2006 Opel Astra
To start off, 2008 Audi A8 is newer by 2 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 5,998 cc, 2008 Audi A8 is equipped with a bigger engine. In terms of performance, 2008 Audi A8 (445 HP @ 6200 RPM) has 341 more horse power than 2006 Opel Astra. (104 HP @ 6000 RPM). In normal driving conditions, 2008 Audi A8 should accelerate faster than 2006 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi A8 weights approximately 729 kg more than 2006 Opel Astra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 Audi A8 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, 2008 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, 2008 Audi A8 (580 Nm @ 4000 RPM) has 430 more torque (in Nm) than 2006 Opel Astra. (150 Nm @ 3900 RPM). This means 2008 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2006 Opel Astra.
Compare all specifications:
| 2008 Audi A8 | 2006 Opel Astra | |
| Make | Audi | Opel |
| Model | A8 | Astra |
| Year Released | 2008 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 5998 cc | 1598 cc |
| Engine Type | W | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 445 HP | 104 HP |
| Engine RPM | 6200 RPM | 6000 RPM |
| Torque | 580 Nm | 150 Nm |
| Torque RPM | 4000 RPM | 3900 RPM |
| Engine Bore Size | 84 mm | 79 mm |
| Engine Stroke Size | 90.2 mm | 81.5 mm |
| Engine Compression Ratio | 11.0:1 | 10.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 250 km/hour | 185 km/hour |
| Acceleration 0-100mph | 5.2 seconds | 12.3 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 | 1995 kg | 1266 kg |
| Vehicle Length | 5190 mm | 4260 mm |
| Vehicle Width | 1900 mm | 1760 mm |
| Vehicle Height | 1460 mm | 1470 mm |
| Wheelbase Size | 3080 mm | 2620 mm |
| Fuel Consumption Overall | 13.8 L/100km | 6.6 L/100km |
| Fuel Tank Capacity | 90 L | 52 L |
