2007 Citroen C5 vs. 1981 Renault 9
To start off, 2007 Citroen C5 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 1,997 cc (4 cylinders), 2007 Citroen C5 is equipped with a bigger engine. In terms of performance, 2007 Citroen C5 (134 HP @ 4000 RPM) has 80 more horse power than 1981 Renault 9. (54 HP @ 4800 RPM). In normal driving conditions, 2007 Citroen C5 should accelerate faster than 1981 Renault 9. With that said, vehicle weight also plays an important factor in acceleration. 2007 Citroen C5 weights approximately 658 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 Citroen C5 (320 Nm @ 2000 RPM) has 216 more torque (in Nm) than 1981 Renault 9. (104 Nm @ 2250 RPM). This means 2007 Citroen C5 will have an easier job in driving up hills or pulling heavy equipment than 1981 Renault 9.
Compare all specifications:
| 2007 Citroen C5 | 1981 Renault 9 | |
| Make | Citroen | Renault |
| Model | C5 | 9 |
| Year Released | 2007 | 1981 |
| Engine Position | Front | Front |
| Engine Size | 1997 cc | 1595 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 134 HP | 54 HP |
| Engine RPM | 4000 RPM | 4800 RPM |
| Torque | 320 Nm | 104 Nm |
| Torque RPM | 2000 RPM | 2250 RPM |
| Engine Bore Size | 85 mm | 78 mm |
| Engine Stroke Size | 88 mm | 83.5 mm |
| Engine Compression Ratio | 18.0:1 | 22.5:1 |
| Fuel Type | Diesel | Diesel |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1573 kg | 915 kg |
| Vehicle Length | 4750 mm | 4070 mm |
| Vehicle Width | 1790 mm | 1660 mm |
| Vehicle Height | 1480 mm | 1410 mm |
| Wheelbase Size | 2760 mm | 2490 mm |
| Fuel Tank Capacity | 66 L | 38 L |
