2007 Audi A4 vs. 1981 Renault 9
To start off, 2007 Audi A4 is newer by 26 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 1,984 cc (4 cylinders), 2007 Audi A4 is equipped with a bigger engine. In terms of performance, 2007 Audi A4 (197 HP @ 5100 RPM) has 143 more horse power than 1981 Renault 9. (54 HP @ 4800 RPM). In normal driving conditions, 2007 Audi A4 should accelerate faster than 1981 Renault 9. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi A4 weights approximately 715 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, 2007 Audi A4 (280 Nm @ 1800 RPM) has 176 more torque (in Nm) than 1981 Renault 9. (104 Nm @ 2250 RPM). This means 2007 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1981 Renault 9.
Compare all specifications:
| 2007 Audi A4 | 1981 Renault 9 | |
| Make | Audi | Renault |
| Model | A4 | 9 |
| Year Released | 2007 | 1981 |
| Engine Position | Front | Front |
| Engine Size | 1984 cc | 1595 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 197 HP | 54 HP |
| Engine RPM | 5100 RPM | 4800 RPM |
| Torque | 280 Nm | 104 Nm |
| Torque RPM | 1800 RPM | 2250 RPM |
| Engine Bore Size | 82.5 mm | 78 mm |
| Engine Stroke Size | 92.8 mm | 83.5 mm |
| Engine Compression Ratio | 10.5:1 | 22.5:1 |
| Fuel Type | Gasoline | Diesel |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1630 kg | 915 kg |
| Vehicle Length | 4580 mm | 4070 mm |
| Vehicle Width | 1400 mm | 1660 mm |
| Vehicle Height | 1780 mm | 1410 mm |
| Wheelbase Size | 2660 mm | 2490 mm |
| Fuel Tank Capacity | 70 L | 38 L |
