2006 Citroen C6 vs. 2003 Opel Signum
To start off, 2006 Citroen C6 is newer by 3 year(s). Which means there will be less support and parts availability for 2003 Opel Signum. In addition, the cost of maintenance, including insurance, on 2003 Opel Signum would be higher. At 2,946 cc (6 cylinders), 2006 Citroen C6 is equipped with a bigger engine. In terms of performance, 2006 Citroen C6 (208 HP @ 6000 RPM) has 88 more horse power than 2003 Opel Signum. (120 HP @ 6000 RPM). In normal driving conditions, 2006 Citroen C6 should accelerate faster than 2003 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2006 Citroen C6 weights approximately 283 kg more than 2003 Opel Signum. 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, 2006 Citroen C6 (290 Nm @ 3750 RPM) has 124 more torque (in Nm) than 2003 Opel Signum. (166 Nm @ 3800 RPM). This means 2006 Citroen C6 will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Signum. 2006 Citroen C6 has automatic transmission and 2003 Opel Signum has manual transmission. 2003 Opel Signum will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2006 Citroen C6 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 Citroen C6 | 2003 Opel Signum | |
| Make | Citroen | Opel |
| Model | C6 | Signum |
| Year Released | 2006 | 2003 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2946 cc | 1796 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 208 HP | 120 HP |
| Engine RPM | 6000 RPM | 6000 RPM |
| Torque | 290 Nm | 166 Nm |
| Torque RPM | 3750 RPM | 3800 RPM |
| Engine Bore Size | 87 mm | 80.5 mm |
| Engine Stroke Size | 82.6 mm | 88.2 mm |
| Engine Compression Ratio | 10.9:1 | 10.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 230 km/hour | 197 km/hour |
| Acceleration 0-100mph | 10 seconds | 12.2 seconds |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1818 kg | 1535 kg |
| Vehicle Length | 4910 mm | 4640 mm |
| Vehicle Width | 1870 mm | 1800 mm |
| Vehicle Height | 1470 mm | 1470 mm |
| Wheelbase Size | 2910 mm | 2840 mm |
| Fuel Consumption Overall | 11.2 L/100km | 8.1 L/100km |
| Fuel Tank Capacity | 72 L | 60 L |
