2004 Audi A4 vs. 1981 Renault 18
To start off, 2004 Audi A4 is newer by 23 year(s). Which means there will be less support and parts availability for 1981 Renault 18. In addition, the cost of maintenance, including insurance, on 1981 Renault 18 would be higher. At 1,781 cc (4 cylinders), 2004 Audi A4 is equipped with a bigger engine. In terms of performance, 2004 Audi A4 (169 HP @ 6300 RPM) has 89 more horse power than 1981 Renault 18. (80 HP @ 5000 RPM). In normal driving conditions, 2004 Audi A4 should accelerate faster than 1981 Renault 18. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi A4 weights approximately 540 kg more than 1981 Renault 18. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 1981 Renault 18. In wet, icy, snow, or gravel driving conditions, 2004 Audi A4 will offer significantly more control. 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, 2004 Audi A4 (225 Nm @ 1950 RPM) has 88 more torque (in Nm) than 1981 Renault 18. (137 Nm @ 3000 RPM). This means 2004 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1981 Renault 18.
Compare all specifications:
| 2004 Audi A4 | 1981 Renault 18 | |
| Make | Audi | Renault |
| Model | A4 | 18 |
| Year Released | 2004 | 1981 |
| Engine Position | Front | Front |
| Engine Size | 1781 cc | 1647 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 169 HP | 80 HP |
| Engine RPM | 6300 RPM | 5000 RPM |
| Torque | 225 Nm | 137 Nm |
| Torque RPM | 1950 RPM | 3000 RPM |
| Engine Bore Size | 81 mm | 81 mm |
| Engine Stroke Size | 86.4 mm | 83.5 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1565 kg | 1025 kg |
| Vehicle Length | 4580 mm | 4470 mm |
| Vehicle Width | 1770 mm | 1710 mm |
| Vehicle Height | 1400 mm | 1410 mm |
