2003 Alfa Romeo 166 vs. 1991 Citroen ZX
To start off, 2003 Alfa Romeo 166 is newer by 12 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 2,492 cc (6 cylinders), 2003 Alfa Romeo 166 is equipped with a bigger engine. In terms of performance, 2003 Alfa Romeo 166 (185 HP @ 6300 RPM) has 110 more horse power than 1991 Citroen ZX. (75 HP @ 5800 RPM). In normal driving conditions, 2003 Alfa Romeo 166 should accelerate faster than 1991 Citroen ZX. With that said, vehicle weight also plays an important factor in acceleration. 2003 Alfa Romeo 166 weights approximately 435 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, 2003 Alfa Romeo 166 (221 Nm @ 5000 RPM) has 111 more torque (in Nm) than 1991 Citroen ZX. (110 Nm @ 3400 RPM). This means 2003 Alfa Romeo 166 will have an easier job in driving up hills or pulling heavy equipment than 1991 Citroen ZX.
Compare all specifications:
| 2003 Alfa Romeo 166 | 1991 Citroen ZX | |
| Make | Alfa Romeo | Citroen |
| Model | 166 | ZX |
| Year Released | 2003 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 2492 cc | 1360 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 185 HP | 75 HP |
| Engine RPM | 6300 RPM | 5800 RPM |
| Torque | 221 Nm | 110 Nm |
| Torque RPM | 5000 RPM | 3400 RPM |
| Engine Compression Ratio | 10.3:1 | 9.3:1 |
| Top Speed | 220 km/hour | 167 km/hour |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1435 kg | 1000 kg |
| Vehicle Length | 4730 mm | 4070 mm |
| Vehicle Width | 1810 mm | 1710 mm |
| Vehicle Height | 1420 mm | 1410 mm |
| Wheelbase Size | 2710 mm | 2550 mm |
| Fuel Tank Capacity | 69 L | 56 L |
