2008 Citroen C4 vs. 2005 Opel Signum
To start off, 2008 Citroen C4 is newer by 3 year(s). Which means there will be less support and parts availability for 2005 Opel Signum. In addition, the cost of maintenance, including insurance, on 2005 Opel Signum would be higher. At 2,958 cc (6 cylinders), 2005 Opel Signum is equipped with a bigger engine. With that said, vehicle weight also plays an important factor in acceleration. 2005 Opel Signum weights approximately 396 kg more than 2008 Citroen C4.
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, 2005 Opel Signum (370 Nm @ 1900 RPM) has 222 more torque (in Nm) than 2008 Citroen C4. (148 Nm @ 4000 RPM). This means 2005 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2008 Citroen C4. 2008 Citroen C4 has automatic transmission and 2005 Opel Signum has manual transmission. 2005 Opel Signum will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2008 Citroen C4 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2008 Citroen C4 | 2005 Opel Signum | |
| Make | Citroen | Opel |
| Model | C4 | Signum |
| Year Released | 2008 | 2005 |
| Body Type | Hatchback | 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 | 0 HP | 175 HP |
| Torque | 148 Nm | 370 Nm |
| Torque RPM | 4000 RPM | 1900 RPM |
| Engine Bore Size | 78 mm | 87.5 mm |
| Engine Stroke Size | 82 mm | 82 mm |
| Fuel Type | Gasoline | Diesel |
| Top Speed | 188 km/hour | 221 km/hour |
| Acceleration 0-100mph | 13.1 seconds | 9.4 seconds |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1274 kg | 1670 kg |
| Vehicle Length | 4270 mm | 4640 mm |
| Vehicle Width | 1780 mm | 1800 mm |
| Vehicle Height | 1460 mm | 1470 mm |
| Wheelbase Size | 2610 mm | 2620 mm |
| Fuel Consumption Overall | 7.9 L/100km | 7.6 L/100km |
| Fuel Tank Capacity | 60 L | 60 L |
