1981 Renault 9 vs. 2007 Citroen C4
To start off, 2007 Citroen C4 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 1,721 cc (4 cylinders), 1981 Renault 9 is equipped with a bigger engine. In terms of performance, 2007 Citroen C4 (87 HP @ 5250 RPM) has 2 more horse power than 1981 Renault 9. (85 HP @ 5000 RPM) In normal driving conditions, 2007 Citroen C4 should accelerate faster than 1981 Renault 9. With that said, vehicle weight also plays an important factor in acceleration. 2007 Citroen C4 weights approximately 350 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, 1981 Renault 9 (139 Nm @ 3250 RPM) has 6 more torque (in Nm) than 2007 Citroen C4. (133 Nm @ 3250 RPM). This means 1981 Renault 9 will have an easier job in driving up hills or pulling heavy equipment than 2007 Citroen C4.
Compare all specifications:
| 1981 Renault 9 | 2007 Citroen C4 | |
| Make | Renault | Citroen |
| Model | 9 | C4 |
| Year Released | 1981 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 1721 cc | 1360 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 85 HP | 87 HP |
| Engine RPM | 5000 RPM | 5250 RPM |
| Torque | 139 Nm | 133 Nm |
| Torque RPM | 3250 RPM | 3250 RPM |
| Fuel Type | Gasoline | Gasoline - Premium |
| Vehicle Weight | 906 kg | 1256 kg |
| Vehicle Length | 4070 mm | 4270 mm |
| Vehicle Width | 1660 mm | 1780 mm |
| Vehicle Height | 1410 mm | 1460 mm |
| Wheelbase Size | 2490 mm | 2610 mm |
