2004 Audi S4 vs. 1981 Renault 9
To start off, 2004 Audi S4 is newer by 23 year(s). Which means there will be less support and parts availability for 1981 Renault 9. In addition, the cost of maintenance, including insurance, on 1981 Renault 9 would be higher. At 4,172 cc (8 cylinders), 2004 Audi S4 is equipped with a bigger engine. In terms of performance, 2004 Audi S4 (339 HP @ 7000 RPM) has 254 more horse power than 1981 Renault 9. (85 HP @ 5000 RPM). In normal driving conditions, 2004 Audi S4 should accelerate faster than 1981 Renault 9. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi S4 weights approximately 814 kg more than 1981 Renault 9. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2004 Audi S4 (410 Nm @ 3500 RPM) has 271 more torque (in Nm) than 1981 Renault 9. (139 Nm @ 3250 RPM). This means 2004 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 1981 Renault 9.
Compare all specifications:
| 2004 Audi S4 | 1981 Renault 9 | |
| Make | Audi | Renault |
| Model | S4 | 9 |
| Year Released | 2004 | 1981 |
| Engine Position | Front | Front |
| Engine Size | 4172 cc | 1721 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 339 HP | 85 HP |
| Engine RPM | 7000 RPM | 5000 RPM |
| Torque | 410 Nm | 139 Nm |
| Torque RPM | 3500 RPM | 3250 RPM |
| Engine Bore Size | 84.5 mm | 81 mm |
| Engine Stroke Size | 92.8 mm | 83.5 mm |
| Vehicle Weight | 1720 kg | 906 kg |
| Vehicle Length | 4590 mm | 4070 mm |
| Vehicle Width | 1780 mm | 1660 mm |
| Vehicle Height | 1430 mm | 1410 mm |
| Wheelbase Size | 2470 mm | 2490 mm |
