2003 Opel Vectra vs. 2007 Citroen C8
To start off, 2007 Citroen C8 is newer by 4 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 2,958 cc (6 cylinders), 2003 Opel Vectra is equipped with a bigger engine. In terms of performance, 2003 Opel Vectra (174 HP @ 4000 RPM) has 40 more horse power than 2007 Citroen C8. (134 HP @ 6000 RPM). In normal driving conditions, 2003 Opel Vectra should accelerate faster than 2007 Citroen C8. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Vectra weights approximately 119 kg more than 2007 Citroen C8. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. 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, 2003 Opel Vectra (370 Nm @ 1900 RPM) has 180 more torque (in Nm) than 2007 Citroen C8. (190 Nm @ 4100 RPM). This means 2003 Opel Vectra will have an easier job in driving up hills or pulling heavy equipment than 2007 Citroen C8.
Compare all specifications:
| 2003 Opel Vectra | 2007 Citroen C8 | |
| Make | Opel | Citroen |
| Model | Vectra | C8 |
| Year Released | 2003 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 2958 cc | 1997 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 174 HP | 134 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 370 Nm | 190 Nm |
| Torque RPM | 1900 RPM | 4100 RPM |
| Engine Bore Size | 87.5 mm | 85 mm |
| Engine Stroke Size | 82 mm | 88 mm |
| Engine Compression Ratio | 18.5:1 | 11.0:1 |
| Top Speed | 220 km/hour | 185 km/hour |
| Acceleration 0-100mph | 10.1 seconds | 12.2 seconds |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Automatic |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1764 kg | 1645 kg |
| Vehicle Length | 4830 mm | 3440 mm |
| Vehicle Width | 1800 mm | 1860 mm |
| Vehicle Height | 1510 mm | 1760 mm |
| Wheelbase Size | 2840 mm | 2830 mm |
| Fuel Consumption Overall | 7.7 L/100km | 9.3 L/100km |
| Fuel Tank Capacity | 60 L | 80 L |
