2007 Citroen C1 vs. 2004 Opel Signum
To start off, 2007 Citroen C1 is newer by 3 year(s). Which means there will be less support and parts availability for 2004 Opel Signum. In addition, the cost of maintenance, including insurance, on 2004 Opel Signum would be higher. At 1,908 cc (4 cylinders), 2004 Opel Signum is equipped with a bigger engine. In terms of performance, 2004 Opel Signum (148 HP @ 4000 RPM) has 81 more horse power than 2007 Citroen C1. (67 HP @ 6000 RPM) In normal driving conditions, 2004 Opel Signum should accelerate faster than 2007 Citroen C1. With that said, vehicle weight also plays an important factor in acceleration. 2004 Opel Signum weights approximately 810 kg more than 2007 Citroen C1. 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, 2004 Opel Signum (326 Nm @ 2000 RPM) has 233 more torque (in Nm) than 2007 Citroen C1. (93 Nm @ 3600 RPM). This means 2004 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2007 Citroen C1.
Compare all specifications:
| 2007 Citroen C1 | 2004 Opel Signum | |
| Make | Citroen | Opel |
| Model | C1 | Signum |
| Year Released | 2007 | 2004 |
| Body Type | Hatchback | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 997 cc | 1908 cc |
| Engine Cylinders | 3 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 67 HP | 148 HP |
| Engine RPM | 6000 RPM | 4000 RPM |
| Torque | 93 Nm | 326 Nm |
| Torque RPM | 3600 RPM | 2000 RPM |
| Engine Bore Size | 71 mm | 82 mm |
| Engine Stroke Size | 84 mm | 90.4 mm |
| Engine Compression Ratio | 10.5:1 | 18.0:1 |
| Fuel Type | Gasoline | Diesel |
| Top Speed | 157 km/hour | 209 km/hour |
| Acceleration 0-100mph | 13.7 seconds | 10.5 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 800 kg | 1610 kg |
| Vehicle Length | 3440 mm | 4640 mm |
| Vehicle Width | 1480 mm | 1800 mm |
| Vehicle Height | 1640 mm | 1470 mm |
| Wheelbase Size | 2350 mm | 2840 mm |
| Fuel Consumption Overall | 4.6 L/100km | 6.1 L/100km |
| Fuel Tank Capacity | 41 L | 60 L |
