1991 Citroen ZX vs. 1985 Pontiac Firebird
To start off, 1991 Citroen ZX is newer by 6 year(s). Which means there will be less support and parts availability for 1985 Pontiac Firebird. In addition, the cost of maintenance, including insurance, on 1985 Pontiac Firebird would be higher. At 5,013 cc (8 cylinders), 1985 Pontiac Firebird is equipped with a bigger engine. In terms of performance, 1985 Pontiac Firebird (190 HP @ 4800 RPM) has 60 more horse power than 1991 Citroen ZX. (130 HP @ 6000 RPM) In normal driving conditions, 1985 Pontiac Firebird should accelerate faster than 1991 Citroen ZX. With that said, vehicle weight also plays an important factor in acceleration. 1985 Pontiac Firebird weights approximately 370 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 1985 Pontiac Firebird is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1985 Pontiac Firebird. However, in wet, icy, snow, or gravel driving conditions, 1991 Citroen ZX, being front wheel drive (FWD), will offer much better control with better grip. 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, 1985 Pontiac Firebird (325 Nm @ 3200 RPM) has 165 more torque (in Nm) than 1991 Citroen ZX. (160 Nm @ 4750 RPM). This means 1985 Pontiac Firebird will have an easier job in driving up hills or pulling heavy equipment than 1991 Citroen ZX.
Compare all specifications:
| 1991 Citroen ZX | 1985 Pontiac Firebird | |
| Make | Citroen | Pontiac |
| Model | ZX | Firebird |
| Year Released | 1991 | 1985 |
| Engine Position | Front | Front |
| Engine Size | 1905 cc | 5013 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 130 HP | 190 HP |
| Engine RPM | 6000 RPM | 4800 RPM |
| Torque | 160 Nm | 325 Nm |
| Torque RPM | 4750 RPM | 3200 RPM |
| Engine Bore Size | 83 mm | 95 mm |
| Engine Stroke Size | 88 mm | 88.4 mm |
| Engine Compression Ratio | 9.6:1 | 9.5:1 |
| Top Speed | 200 km/hour | 205 km/hour |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Weight | 1104 kg | 1474 kg |
| Vehicle Length | 4090 mm | 4880 mm |
| Vehicle Width | 1710 mm | 1850 mm |
| Vehicle Height | 1410 mm | 1270 mm |
| Wheelbase Size | 2550 mm | 2570 mm |
