2009 Citroen C4 vs. 1971 Renault 15
To start off, 2009 Citroen C4 is newer by 38 year(s). Which means there will be less support and parts availability for 1971 Renault 15. In addition, the cost of maintenance, including insurance, on 1971 Renault 15 would be higher. At 1,565 cc (4 cylinders), 1971 Renault 15 is equipped with a bigger engine. In terms of performance, 2009 Citroen C4 (112 HP @ 4000 RPM) has 23 more horse power than 1971 Renault 15. (89 HP @ 5500 RPM). In normal driving conditions, 2009 Citroen C4 should accelerate faster than 1971 Renault 15. With that said, vehicle weight also plays an important factor in acceleration. 2009 Citroen C4 weights approximately 220 kg more than 1971 Renault 15. 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 Citroen C4 (240 Nm @ 1750 RPM) has 115 more torque (in Nm) than 1971 Renault 15. (125 Nm @ 3000 RPM). This means 2009 Citroen C4 will have an easier job in driving up hills or pulling heavy equipment than 1971 Renault 15.
Compare all specifications:
| 2009 Citroen C4 | 1971 Renault 15 | |
| Make | Citroen | Renault |
| Model | C4 | 15 |
| Year Released | 2009 | 1971 |
| Engine Position | Front | Front |
| Engine Size | 1560 cc | 1565 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 112 HP | 89 HP |
| Engine RPM | 4000 RPM | 5500 RPM |
| Torque | 240 Nm | 125 Nm |
| Torque RPM | 1750 RPM | 3000 RPM |
| Engine Compression Ratio | 18.6:1 | 9.3:1 |
| Fuel Type | Diesel | Gasoline |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 3 doors |
| Vehicle Weight | 1240 kg | 1020 kg |
| Vehicle Length | 4280 mm | 4260 mm |
| Vehicle Width | 1640 mm | 1640 mm |
| Vehicle Height | 1760 mm | 1320 mm |
| Wheelbase Size | 2770 mm | 2440 mm |
| Fuel Tank Capacity | 55 L | 38 L |
