1999 Audi A4 vs. 1981 Renault 9
To start off, 1999 Audi A4 is newer by 18 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 1,721 cc (4 cylinders), 1981 Renault 9 is equipped with a bigger engine. In terms of performance, 1999 Audi A4 (100 HP @ 5300 RPM) has 15 more horse power than 1981 Renault 9. (85 HP @ 5000 RPM). In normal driving conditions, 1999 Audi A4 should accelerate faster than 1981 Renault 9. With that said, vehicle weight also plays an important factor in acceleration. 1999 Audi A4 weights approximately 289 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, 1999 Audi A4 (140 Nm @ 3800 RPM) has 1 more torque (in Nm) than 1981 Renault 9. (139 Nm @ 3250 RPM). This means 1999 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1981 Renault 9.
Compare all specifications:
| 1999 Audi A4 | 1981 Renault 9 | |
| Make | Audi | Renault |
| Model | A4 | 9 |
| Year Released | 1999 | 1981 |
| Engine Position | Front | Front |
| Engine Size | 1594 cc | 1721 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 100 HP | 85 HP |
| Engine RPM | 5300 RPM | 5000 RPM |
| Torque | 140 Nm | 139 Nm |
| Torque RPM | 3800 RPM | 3250 RPM |
| Engine Bore Size | 81 mm | 81 mm |
| Engine Stroke Size | 77.5 mm | 83.5 mm |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Weight | 1195 kg | 906 kg |
| Vehicle Length | 4480 mm | 4070 mm |
| Vehicle Width | 1740 mm | 1660 mm |
| Vehicle Height | 1420 mm | 1410 mm |
| Wheelbase Size | 2620 mm | 2490 mm |
