2006 Audi S4 vs. 1991 Citroen ZX
To start off, 2006 Audi S4 is newer by 15 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 4,163 cc (8 cylinders), 2006 Audi S4 is equipped with a bigger engine. In terms of performance, 2006 Audi S4 (340 HP @ 7000 RPM) has 210 more horse power than 1991 Citroen ZX. (130 HP @ 6000 RPM). In normal driving conditions, 2006 Audi S4 should accelerate faster than 1991 Citroen ZX. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi S4 weights approximately 406 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, 2006 Audi S4 (410 Nm @ 3500 RPM) has 250 more torque (in Nm) than 1991 Citroen ZX. (160 Nm @ 4750 RPM). This means 2006 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 1991 Citroen ZX.
Compare all specifications:
| 2006 Audi S4 | 1991 Citroen ZX | |
| Make | Audi | Citroen |
| Model | S4 | ZX |
| Year Released | 2006 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 1905 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 340 HP | 130 HP |
| Engine RPM | 7000 RPM | 6000 RPM |
| Torque | 410 Nm | 160 Nm |
| Torque RPM | 3500 RPM | 4750 RPM |
| Engine Compression Ratio | 11.0:1 | 9.6:1 |
| Acceleration 0-100mph | 5.9 seconds | 9.5 seconds |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1510 kg | 1104 kg |
| Vehicle Length | 4590 mm | 4090 mm |
| Vehicle Width | 1790 mm | 1710 mm |
| Vehicle Height | 1420 mm | 1410 mm |
| Wheelbase Size | 2660 mm | 2550 mm |
