2004 Alfa Romeo 156 vs. 1991 Citroen ZX
To start off, 2004 Alfa Romeo 156 is newer by 13 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 1,910 cc (4 cylinders), 2004 Alfa Romeo 156 is equipped with a bigger engine. In terms of performance, 2004 Alfa Romeo 156 (148 HP @ 4000 RPM) has 59 more horse power than 1991 Citroen ZX. (89 HP @ 6400 RPM). In normal driving conditions, 2004 Alfa Romeo 156 should accelerate faster than 1991 Citroen ZX. With that said, vehicle weight also plays an important factor in acceleration. 2004 Alfa Romeo 156 weights approximately 525 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.
Because 2004 Alfa Romeo 156 is four wheel drive (4WD), it will have significant more traction and grip than 1991 Citroen ZX. In wet, icy, snow, or gravel driving conditions, 2004 Alfa Romeo 156 will offer significantly more control. 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 Alfa Romeo 156 (300 Nm @ 2000 RPM) has 167 more torque (in Nm) than 1991 Citroen ZX. (133 Nm @ 3000 RPM). This means 2004 Alfa Romeo 156 will have an easier job in driving up hills or pulling heavy equipment than 1991 Citroen ZX.
Compare all specifications:
| 2004 Alfa Romeo 156 | 1991 Citroen ZX | |
| Make | Alfa Romeo | Citroen |
| Model | 156 | ZX |
| Year Released | 2004 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 1910 cc | 1579 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 148 HP | 89 HP |
| Engine RPM | 4000 RPM | 6400 RPM |
| Torque | 300 Nm | 133 Nm |
| Torque RPM | 2000 RPM | 3000 RPM |
| Engine Bore Size | 82 mm | 83 mm |
| Engine Stroke Size | 90.4 mm | 73 mm |
| Top Speed | 200 km/hour | 180 km/hour |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1525 kg | 1000 kg |
| Vehicle Width | 1750 mm | 1710 mm |
| Vehicle Height | 1460 mm | 1410 mm |
| Wheelbase Size | 2600 mm | 2430 mm |
