2005 Citroen C4 vs. 2001 Opel Signum
To start off, 2005 Citroen C4 is newer by 4 year(s). Which means there will be less support and parts availability for 2001 Opel Signum. In addition, the cost of maintenance, including insurance, on 2001 Opel Signum would be higher. At 1,997 cc (4 cylinders), 2005 Citroen C4 is equipped with a bigger engine. In terms of performance, 2001 Opel Signum (144 HP @ 4000 RPM) has 6 more horse power than 2005 Citroen C4. (138 HP @ 6000 RPM) In normal driving conditions, 2001 Opel Signum should accelerate faster than 2005 Citroen C4. With that said, vehicle weight also plays an important factor in acceleration. 2001 Opel Signum weights approximately 119 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, 2001 Opel Signum (220 Nm) has 110 more torque (in Nm) than 2005 Citroen C4. (110 Nm). This means 2001 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2005 Citroen C4. 2005 Citroen C4 has automatic transmission and 2001 Opel Signum has manual transmission. 2001 Opel Signum will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Citroen C4 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Citroen C4 | 2001 Opel Signum | |
| Make | Citroen | Opel |
| Model | C4 | Signum |
| Year Released | 2005 | 2001 |
| Body Type | Hatchback | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1997 cc | 1994 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 138 HP | 144 HP |
| Engine RPM | 6000 RPM | 4000 RPM |
| Torque | 110 Nm | 220 Nm |
| Engine Compression Ratio | 11.0:1 | 18.0:1 |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1279 kg | 1398 kg |
| Vehicle Length | 4270 mm | 4640 mm |
| Vehicle Width | 1780 mm | 1800 mm |
| Vehicle Height | 1460 mm | 1470 mm |
| Wheelbase Size | 2610 mm | 2850 mm |
| Fuel Tank Capacity | 60 L | 60 L |
