2005 Audi A8 vs. 2006 Opel Vectra
To start off, 2006 Opel Vectra is newer by 1 year(s). Which means there will be less support and parts availability for 2005 Audi A8. In addition, the cost of maintenance, including insurance, on 2005 Audi A8 would be higher. At 5,998 cc, 2005 Audi A8 is equipped with a bigger engine. In terms of performance, 2005 Audi A8 (450 HP @ 6300 RPM) has 297 more horse power than 2006 Opel Vectra. (153 HP @ 5600 RPM). In normal driving conditions, 2005 Audi A8 should accelerate faster than 2006 Opel Vectra. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A8 weights approximately 690 kg more than 2006 Opel Vectra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2006 Opel Vectra. In wet, icy, snow, or gravel driving conditions, 2005 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, 2005 Audi A8 (560 Nm) has 340 more torque (in Nm) than 2006 Opel Vectra. (220 Nm). This means 2005 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2006 Opel Vectra.
Compare all specifications:
| 2005 Audi A8 | 2006 Opel Vectra | |
| Make | Audi | Opel |
| Model | A8 | Vectra |
| Year Released | 2005 | 2006 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5998 cc | 2198 cc |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 450 HP | 153 HP |
| Engine RPM | 6300 RPM | 5600 RPM |
| Torque | 560 Nm | 220 Nm |
| Engine Bore Size | 84.1 mm | 86 mm |
| Engine Stroke Size | 90 mm | 94.6 mm |
| Engine Compression Ratio | 11.0:1 | 12.0:1 |
| Drive Type | 4WD | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 2145 kg | 1455 kg |
| Vehicle Length | 5200 mm | 4600 mm |
| Vehicle Width | 1900 mm | 1800 mm |
| Vehicle Height | 1460 mm | 1470 mm |
| Wheelbase Size | 3080 mm | 2710 mm |
| Fuel Consumption Overall | 13.8 L/100km | 7.7 L/100km |
| Fuel Tank Capacity | 90 L | 61 L |
