2008 Citroen C4 vs. 2006 Opel Signum
To start off, 2008 Citroen C4 is newer by 2 year(s). Which means there will be less support and parts availability for 2006 Opel Signum. In addition, the cost of maintenance, including insurance, on 2006 Opel Signum would be higher. At 2,198 cc (4 cylinders), 2006 Opel Signum is equipped with a bigger engine. In terms of performance, 2006 Opel Signum (153 HP @ 5600 RPM) has 30 more horse power than 2008 Citroen C4. (123 HP @ 6000 RPM) In normal driving conditions, 2006 Opel Signum should accelerate faster than 2008 Citroen C4. With that said, vehicle weight also plays an important factor in acceleration. 2008 Citroen C4 weights approximately 55 kg more than 2006 Opel Signum.
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 (220 Nm @ 3800 RPM) has 50 more torque (in Nm) than 2008 Citroen C4. (170 Nm @ 3750 RPM). This means 2006 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2008 Citroen C4.
Compare all specifications:
| 2008 Citroen C4 | 2006 Opel Signum | |
| Make | Citroen | Opel |
| Model | C4 | Signum |
| Year Released | 2008 | 2006 |
| Body Type | Minivan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1749 cc | 2198 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 123 HP | 153 HP |
| Engine RPM | 6000 RPM | 5600 RPM |
| Torque | 170 Nm | 220 Nm |
| Torque RPM | 3750 RPM | 3800 RPM |
| Engine Bore Size | 82.7 mm | 86 mm |
| Engine Stroke Size | 81.4 mm | 94.6 mm |
| Engine Compression Ratio | 11.0:1 | 12.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 185 km/hour | 211 km/hour |
| Acceleration 0-100mph | 13.4 seconds | 9.8 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1590 kg | 1535 kg |
| Vehicle Length | 4590 mm | 4640 mm |
| Vehicle Width | 1840 mm | 1800 mm |
| Vehicle Height | 1630 mm | 1470 mm |
| Wheelbase Size | 2730 mm | 2840 mm |
| Fuel Consumption Overall | 8 L/100km | 8.3 L/100km |
| Fuel Tank Capacity | 60 L | 60 L |
