2005 Audi S4 vs. 1987 Citroen AX
To start off, 2005 Audi S4 is newer by 18 year(s). Which means there will be less support and parts availability for 1987 Citroen AX. In addition, the cost of maintenance, including insurance, on 1987 Citroen AX would be higher. At 4,161 cc (8 cylinders), 2005 Audi S4 is equipped with a bigger engine. In terms of performance, 2005 Audi S4 (340 HP @ 6300 RPM) has 255 more horse power than 1987 Citroen AX. (85 HP @ 6400 RPM). In normal driving conditions, 2005 Audi S4 should accelerate faster than 1987 Citroen AX. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi S4 weights approximately 1118 kg more than 1987 Citroen AX. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2005 Audi S4 (410 Nm) has 295 more torque (in Nm) than 1987 Citroen AX. (115 Nm). This means 2005 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 1987 Citroen AX.
Compare all specifications:
| 2005 Audi S4 | 1987 Citroen AX | |
| Make | Audi | Citroen |
| Model | S4 | AX |
| Year Released | 2005 | 1987 |
| Body Type | Convertible | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 4161 cc | 1358 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 340 HP | 85 HP |
| Engine RPM | 6300 RPM | 6400 RPM |
| Torque | 410 Nm | 115 Nm |
| Engine Bore Size | 85 mm | 75 mm |
| Engine Stroke Size | 93 mm | 77 mm |
| Engine Compression Ratio | 11.0:1 | 9.3:1 |
| Number of Seats | 4 seats | 5 seats |
| Vehicle Weight | 1840 kg | 722 kg |
| Vehicle Length | 4580 mm | 3540 mm |
| Vehicle Width | 1780 mm | 1610 mm |
| Vehicle Height | 1400 mm | 1350 mm |
| Wheelbase Size | 2660 mm | 2290 mm |
