2004 Citroen C5 vs. 2006 Opel Signum
To start off, 2006 Opel Signum is newer by 2 year(s). Which means there will be less support and parts availability for 2004 Citroen C5. In addition, the cost of maintenance, including insurance, on 2004 Citroen C5 would be higher. At 2,958 cc (6 cylinders), 2006 Opel Signum is equipped with a bigger engine. In terms of performance, 2006 Opel Signum (175 HP @ 4000 RPM) has 67 more horse power than 2004 Citroen C5. (108 HP @ 4000 RPM) In normal driving conditions, 2006 Opel Signum should accelerate faster than 2004 Citroen C5.
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 Opel Signum (370 Nm @ 1900 RPM) has 115 more torque (in Nm) than 2004 Citroen C5. (255 Nm @ 1750 RPM). This means 2006 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2004 Citroen C5.
Compare all specifications:
| 2004 Citroen C5 | 2006 Opel Signum | |
| Make | Citroen | Opel |
| Model | C5 | Signum |
| Year Released | 2004 | 2006 |
| Body Type | Station Wagon | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1587 cc | 2958 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 108 HP | 175 HP |
| Engine RPM | 4000 RPM | 4000 RPM |
| Torque | 255 Nm | 370 Nm |
| Torque RPM | 1750 RPM | 1900 RPM |
| Engine Bore Size | 75 mm | 87.5 mm |
| Engine Stroke Size | 88 mm | 82 mm |
| Engine Compression Ratio | 18.0:1 | 18.5:1 |
| Fuel Type | Diesel | Diesel |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Length | 4620 mm | 4640 mm |
| Vehicle Width | 1780 mm | 1800 mm |
| Vehicle Height | 1480 mm | 1470 mm |
| Wheelbase Size | 2760 mm | 2840 mm |
| Fuel Tank Capacity | 47 L | 60 L |
