2006 Citroen C5 vs. 2003 Opel Signum
To start off, 2006 Citroen C5 is newer by 3 year(s). Which means there will be less support and parts availability for 2003 Opel Signum. In addition, the cost of maintenance, including insurance, on 2003 Opel Signum would be higher. At 2,179 cc (4 cylinders), 2006 Citroen C5 is equipped with a bigger engine. In terms of performance, 2006 Citroen C5 (131 HP @ 4000 RPM) has 6 more horse power than 2003 Opel Signum. (125 HP @ 6000 RPM). In normal driving conditions, 2006 Citroen C5 should accelerate faster than 2003 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2006 Citroen C5 weights approximately 281 kg more than 2003 Opel Signum. 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, 2006 Citroen C5 (314 Nm @ 2000 RPM) has 147 more torque (in Nm) than 2003 Opel Signum. (167 Nm @ 3800 RPM). This means 2006 Citroen C5 will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Signum.
Compare all specifications:
| 2006 Citroen C5 | 2003 Opel Signum | |
| Make | Citroen | Opel |
| Model | C5 | Signum |
| Year Released | 2006 | 2003 |
| Body Type | Station Wagon | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2179 cc | 1796 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 131 HP | 125 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 314 Nm | 167 Nm |
| Torque RPM | 2000 RPM | 3800 RPM |
| Engine Bore Size | 85.1 mm | 80.6 mm |
| Engine Stroke Size | 96 mm | 88.2 mm |
| Engine Compression Ratio | 17.6:1 | 10.5:1 |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1666 kg | 1385 kg |
| Vehicle Length | 4850 mm | 4640 mm |
| Vehicle Width | 1790 mm | 1800 mm |
| Vehicle Height | 1560 mm | 1470 mm |
| Wheelbase Size | 2760 mm | 2500 mm |
| Fuel Consumption Overall | 7.1 L/100km | 7.5 L/100km |
| Fuel Tank Capacity | 66 L | 58 L |
