2005 Citroen C4 vs. 2007 Opel Vectra
To start off, 2007 Opel Vectra is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Citroen C4. In addition, the cost of maintenance, including insurance, on 2005 Citroen C4 would be higher. At 2,791 cc (6 cylinders), 2007 Opel Vectra is equipped with a bigger engine. In terms of performance, 2007 Opel Vectra (276 HP) has 168 more horse power than 2005 Citroen C4. (108 HP) In normal driving conditions, 2007 Opel Vectra should accelerate faster than 2005 Citroen C4. With that said, vehicle weight also plays an important factor in acceleration. 2007 Opel Vectra weights approximately 338 kg more than 2005 Citroen C4. 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, 2007 Opel Vectra (355 Nm @ 1800 RPM) has 208 more torque (in Nm) than 2005 Citroen C4. (147 Nm @ 4000 RPM). This means 2007 Opel Vectra will have an easier job in driving up hills or pulling heavy equipment than 2005 Citroen C4.
Compare all specifications:
| 2005 Citroen C4 | 2007 Opel Vectra | |
| Make | Citroen | Opel |
| Model | C4 | Vectra |
| Year Released | 2005 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 1587 cc | 2791 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 108 HP | 276 HP |
| Torque | 147 Nm | 355 Nm |
| Torque RPM | 4000 RPM | 1800 RPM |
| Engine Bore Size | 78.5 mm | 89 mm |
| Engine Stroke Size | 82 mm | 74.8 mm |
| Engine Compression Ratio | 11.0:1 | 9.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 194 km/hour | 250 km/hour |
| Acceleration 0-100mph | 11.9 seconds | 6.3 seconds |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1275 kg | 1613 kg |
| Vehicle Length | 4270 mm | 4830 mm |
| Vehicle Width | 1780 mm | 1800 mm |
| Vehicle Height | 1460 mm | 1490 mm |
| Wheelbase Size | 2610 mm | 2840 mm |
| Fuel Consumption Overall | 7.3 L/100km | 10.4 L/100km |
| Fuel Tank Capacity | 60 L | 61 L |
