2005 Audi A8 vs. 1991 Citroen AX
To start off, 2005 Audi A8 is newer by 14 year(s). Which means there will be less support and parts availability for 1991 Citroen AX. In addition, the cost of maintenance, including insurance, on 1991 Citroen AX would be higher. At 4,178 cc (8 cylinders), 2005 Audi A8 is equipped with a bigger engine. In terms of performance, 2005 Audi A8 (335 HP @ 4000 RPM) has 287 more horse power than 1991 Citroen AX. (48 HP @ 6000 RPM). In normal driving conditions, 2005 Audi A8 should accelerate faster than 1991 Citroen AX. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A8 weights approximately 1277 kg more than 1991 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 A8 (430 Nm) has 355 more torque (in Nm) than 1991 Citroen AX. (75 Nm). This means 2005 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 1991 Citroen AX.
Compare all specifications:
| 2005 Audi A8 | 1991 Citroen AX | |
| Make | Audi | Citroen |
| Model | A8 | AX |
| Year Released | 2005 | 1991 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 4178 cc | 953 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 335 HP | 48 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 430 Nm | 75 Nm |
| Engine Bore Size | 85 mm | 70 mm |
| Engine Stroke Size | 93 mm | 62 mm |
| Engine Compression Ratio | 11.0:1 | 9.4:1 |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 1945 kg | 668 kg |
| Vehicle Length | 5060 mm | 3510 mm |
| Vehicle Width | 1900 mm | 1560 mm |
| Vehicle Height | 1450 mm | 1360 mm |
| Wheelbase Size | 2950 mm | 2290 mm |
