2007 Citroen C4 vs. 1988 Renault 21
To start off, 2007 Citroen C4 is newer by 19 year(s). Which means there will be less support and parts availability for 1988 Renault 21. In addition, the cost of maintenance, including insurance, on 1988 Renault 21 would be higher. At 1,870 cc (4 cylinders), 1988 Renault 21 is equipped with a bigger engine. In terms of performance, 2007 Citroen C4 (123 HP @ 6000 RPM) has 59 more horse power than 1988 Renault 21. (64 HP @ 4500 RPM). In normal driving conditions, 2007 Citroen C4 should accelerate faster than 1988 Renault 21. With that said, vehicle weight also plays an important factor in acceleration. 2007 Citroen C4 weights approximately 480 kg more than 1988 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, 2007 Citroen C4 (170 Nm @ 3750 RPM) has 52 more torque (in Nm) than 1988 Renault 21. (118 Nm @ 2250 RPM). This means 2007 Citroen C4 will have an easier job in driving up hills or pulling heavy equipment than 1988 Renault 21.
Compare all specifications:
| 2007 Citroen C4 | 1988 Renault 21 | |
| Make | Citroen | Renault |
| Model | C4 | 21 |
| Year Released | 2007 | 1988 |
| Engine Position | Front | Front |
| Engine Size | 1747 cc | 1870 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 123 HP | 64 HP |
| Engine RPM | 6000 RPM | 4500 RPM |
| Torque | 170 Nm | 118 Nm |
| Torque RPM | 3750 RPM | 2250 RPM |
| Engine Bore Size | 82.7 mm | 80 mm |
| Engine Stroke Size | 81.4 mm | 93 mm |
| Engine Compression Ratio | 11.0:1 | 21.5:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 7 seats |
| Vehicle Weight | 1585 kg | 1105 kg |
| Vehicle Length | 4280 mm | 4650 mm |
| Vehicle Width | 1840 mm | 1720 mm |
| Vehicle Height | 1630 mm | 1430 mm |
| Wheelbase Size | 2730 mm | 2820 mm |
