1989 Renault 21 vs. 2010 Citroen C4
To start off, 2010 Citroen C4 is newer by 21 year(s). Which means there will be less support and parts availability for 1989 Renault 21. In addition, the cost of maintenance, including insurance, on 1989 Renault 21 would be higher. At 1,721 cc (4 cylinders), 1989 Renault 21 is equipped with a bigger engine. In terms of performance, 2010 Citroen C4 (112 HP @ 4000 RPM) has 37 more horse power than 1989 Renault 21. (75 HP @ 5000 RPM) In normal driving conditions, 2010 Citroen C4 should accelerate faster than 1989 Renault 21. With that said, vehicle weight also plays an important factor in acceleration. 2010 Citroen C4 weights approximately 280 kg more than 1989 Renault 21. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2010 Citroen C4 (240 Nm @ 1750 RPM) has 111 more torque (in Nm) than 1989 Renault 21. (129 Nm @ 3250 RPM). This means 2010 Citroen C4 will have an easier job in driving up hills or pulling heavy equipment than 1989 Renault 21.
Compare all specifications:
| 1989 Renault 21 | 2010 Citroen C4 | |
| Make | Renault | Citroen |
| Model | 21 | C4 |
| Year Released | 1989 | 2010 |
| Engine Position | Front | Front |
| Engine Size | 1721 cc | 1560 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 75 HP | 112 HP |
| Engine RPM | 5000 RPM | 4000 RPM |
| Torque | 129 Nm | 240 Nm |
| Torque RPM | 3250 RPM | 1750 RPM |
| Engine Compression Ratio | 9.2:1 | 18.6:1 |
| Fuel Type | Gasoline | Diesel |
| Top Speed | 176 km/hour | 183 km/hour |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 960 kg | 1240 kg |
| Vehicle Length | 4470 mm | 4280 mm |
| Vehicle Width | 1730 mm | 1640 mm |
| Vehicle Height | 1430 mm | 1760 mm |
| Wheelbase Size | 2550 mm | 2770 mm |
| Fuel Consumption Overall | 7 L/100km | 4.9 L/100km |
| Fuel Tank Capacity | 55 L | 55 L |
