2008 Audi A8 vs. 2005 Opel Vectra
To start off, 2008 Audi A8 is newer by 3 year(s). Which means there will be less support and parts availability for 2005 Opel Vectra. In addition, the cost of maintenance, including insurance, on 2005 Opel Vectra would be higher. At 5,998 cc, 2008 Audi A8 is equipped with a bigger engine. In terms of performance, 2008 Audi A8 (450 HP @ 6200 RPM) has 326 more horse power than 2005 Opel Vectra. (124 HP @ 3250 RPM). In normal driving conditions, 2008 Audi A8 should accelerate faster than 2005 Opel Vectra.
Because 2008 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Opel Vectra. 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 300 more torque (in Nm) than 2005 Opel Vectra. (280 Nm @ 1500 RPM). This means 2008 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2005 Opel Vectra. 2008 Audi A8 has automatic transmission and 2005 Opel Vectra has manual transmission. 2005 Opel Vectra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2008 Audi A8 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2008 Audi A8 | 2005 Opel Vectra | |
| Make | Audi | Opel |
| Model | A8 | Vectra |
| Year Released | 2008 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 5998 cc | 2171 cc |
| Engine Type | W | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 450 HP | 124 HP |
| Engine RPM | 6200 RPM | 3250 RPM |
| Torque | 580 Nm | 280 Nm |
| Torque RPM | 4000 RPM | 1500 RPM |
| Engine Bore Size | 84 mm | 84 mm |
| Engine Stroke Size | 90.2 mm | 98 mm |
| Fuel Type | Gasoline - Premium | Diesel |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Length | 5200 mm | 4830 mm |
| Vehicle Width | 1900 mm | 1800 mm |
| Vehicle Height | 1460 mm | 1510 mm |
| Wheelbase Size | 3080 mm | 2840 mm |
| Fuel Consumption Overall | 13.8 L/100km | 6.3 L/100km |
| Fuel Tank Capacity | 90 L | 60 L |
