2008 Audi S8 vs. 2003 Opel Vectra
To start off, 2008 Audi S8 is newer by 5 year(s). Which means there will be less support and parts availability for 2003 Opel Vectra. In addition, the cost of maintenance, including insurance, on 2003 Opel Vectra would be higher. At 5,204 cc (10 cylinders), 2008 Audi S8 is equipped with a bigger engine. In terms of performance, 2008 Audi S8 (450 HP @ 7000 RPM) has 277 more horse power than 2003 Opel Vectra. (173 HP @ 4000 RPM). In normal driving conditions, 2008 Audi S8 should accelerate faster than 2003 Opel Vectra. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Vectra weights approximately 429 kg more than 2008 Audi S8.
Because 2008 Audi S8 is all wheel drive (AWD), it will have significant more traction and grip than 2003 Opel Vectra. In wet, icy, snow, or gravel driving conditions, 2008 Audi S8 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 S8 (540 Nm @ 3500 RPM) has 170 more torque (in Nm) than 2003 Opel Vectra. (370 Nm @ 1900 RPM). This means 2008 Audi S8 will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Vectra.
Compare all specifications:
| 2008 Audi S8 | 2003 Opel Vectra | |
| Make | Audi | Opel |
| Model | S8 | Vectra |
| Year Released | 2008 | 2003 |
| Engine Position | Front | Front |
| Engine Size | 5204 cc | 2957 cc |
| Engine Cylinders | 10 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 450 HP | 173 HP |
| Engine RPM | 7000 RPM | 4000 RPM |
| Torque | 540 Nm | 370 Nm |
| Torque RPM | 3500 RPM | 1900 RPM |
| Engine Bore Size | 84.5 mm | 87.5 mm |
| Engine Stroke Size | 92.8 mm | 82 mm |
| Engine Compression Ratio | 12.5:1 | 18.5:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Top Speed | 249 km/hour | 226 km/hour |
| Drive Type | AWD | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1176 kg | 1605 kg |
| Vehicle Length | 5070 mm | 4600 mm |
| Vehicle Width | 1900 mm | 1770 mm |
| Vehicle Height | 1430 mm | 1470 mm |
| Wheelbase Size | 2950 mm | 2740 mm |
| Fuel Consumption Overall | 15.7 L/100km | 7 L/100km |
| Fuel Tank Capacity | 90 L | 60 L |
