2009 Audi A4 vs. 1981 Renault 9
To start off, 2009 Audi A4 is newer by 28 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 1,779 cc (4 cylinders), 2009 Audi A4 is equipped with a bigger engine. In terms of performance, 2009 Audi A4 (161 HP) has 94 more horse power than 1981 Renault 9. (67 HP). In normal driving conditions, 2009 Audi A4 should accelerate faster than 1981 Renault 9. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A4 weights approximately 680 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, 2009 Audi A4 (225 Nm @ 1950 RPM) has 115 more torque (in Nm) than 1981 Renault 9. (110 Nm @ 3000 RPM). This means 2009 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1981 Renault 9.
Compare all specifications:
| 2009 Audi A4 | 1981 Renault 9 | |
| Make | Audi | Renault |
| Model | A4 | 9 |
| Year Released | 2009 | 1981 |
| Engine Position | Front | Front |
| Engine Size | 1779 cc | 1397 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 161 HP | 67 HP |
| Torque | 225 Nm | 110 Nm |
| Torque RPM | 1950 RPM | 3000 RPM |
| Engine Bore Size | 81 mm | 76 mm |
| Engine Stroke Size | 86.4 mm | 77 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1540 kg | 860 kg |
| Vehicle Length | 4580 mm | 4070 mm |
| Vehicle Width | 1780 mm | 1660 mm |
| Vehicle Height | 1400 mm | 1410 mm |
| Wheelbase Size | 2660 mm | 2490 mm |
| Fuel Tank Capacity | 70 L | 38 L |
