1991 Citroen C 15 vs. 2006 Opel Signum
To start off, 2006 Opel Signum is newer by 15 year(s). Which means there will be less support and parts availability for 1991 Citroen C 15. In addition, the cost of maintenance, including insurance, on 1991 Citroen C 15 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 79 more horse power than 1991 Citroen C 15. (74 HP @ 6200 RPM) In normal driving conditions, 2006 Opel Signum should accelerate faster than 1991 Citroen C 15. With that said, vehicle weight also plays an important factor in acceleration. 2006 Opel Signum weights approximately 660 kg more than 1991 Citroen C 15. 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 Opel Signum (220 Nm @ 3800 RPM) has 111 more torque (in Nm) than 1991 Citroen C 15. (109 Nm @ 4000 RPM). This means 2006 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 1991 Citroen C 15. 2006 Opel Signum has automatic transmission and 1991 Citroen C 15 has manual transmission. 1991 Citroen C 15 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2006 Opel Signum will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1991 Citroen C 15 | 2006 Opel Signum | |
| Make | Citroen | Opel |
| Model | C 15 | Signum |
| Year Released | 1991 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 1360 cc | 2198 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 74 HP | 153 HP |
| Engine RPM | 6200 RPM | 5600 RPM |
| Torque | 109 Nm | 220 Nm |
| Torque RPM | 4000 RPM | 3800 RPM |
| Engine Bore Size | 74.9 mm | 86 mm |
| Engine Stroke Size | 77 mm | 94.6 mm |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Front | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 875 kg | 1535 kg |
| Vehicle Length | 4010 mm | 4640 mm |
| Vehicle Width | 1650 mm | 1800 mm |
| Vehicle Height | 1820 mm | 1470 mm |
| Wheelbase Size | 2750 mm | 2840 mm |
