1991 Citroen ZX vs. 1998 Opel Signum
To start off, 1998 Opel Signum is newer by 7 year(s). Which means there will be less support and parts availability for 1991 Citroen ZX. In addition, the cost of maintenance, including insurance, on 1991 Citroen ZX would be higher. At 1,998 cc (4 cylinders), 1991 Citroen ZX is equipped with a bigger engine. In terms of performance, 1998 Opel Signum (99 HP @ 3120 RPM) has 28 more horse power than 1991 Citroen ZX. (71 HP @ 4600 RPM) In normal driving conditions, 1998 Opel Signum should accelerate faster than 1991 Citroen ZX. With that said, vehicle weight also plays an important factor in acceleration. 1998 Opel Signum weights approximately 560 kg more than 1991 Citroen ZX. 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, 1998 Opel Signum (185 Nm @ 1500 RPM) has 63 more torque (in Nm) than 1991 Citroen ZX. (122 Nm @ 2000 RPM). This means 1998 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 1991 Citroen ZX.
Compare all specifications:
| 1991 Citroen ZX | 1998 Opel Signum | |
| Make | Citroen | Opel |
| Model | ZX | Signum |
| Year Released | 1991 | 1998 |
| Engine Position | Front | Front |
| Engine Size | 1998 cc | 1909 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 71 HP | 99 HP |
| Engine RPM | 4600 RPM | 3120 RPM |
| Torque | 122 Nm | 185 Nm |
| Torque RPM | 2000 RPM | 1500 RPM |
| Engine Bore Size | 83.1 mm | 84 mm |
| Engine Stroke Size | 88 mm | 90 mm |
| Engine Compression Ratio | 23.0:1 | 18.5:1 |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1035 kg | 1595 kg |
| Vehicle Length | 4070 mm | 4640 mm |
| Vehicle Width | 1710 mm | 1800 mm |
| Vehicle Height | 1410 mm | 1470 mm |
| Wheelbase Size | 2550 mm | 2840 mm |
