2009 Citroen C6 vs. 1990 Renault 21
To start off, 2009 Citroen C6 is newer by 19 year(s). Which means there will be less support and parts availability for 1990 Renault 21. In addition, the cost of maintenance, including insurance, on 1990 Renault 21 would be higher. At 2,720 cc (6 cylinders), 2009 Citroen C6 is equipped with a bigger engine. In terms of performance, 2009 Citroen C6 (201 HP @ 4200 RPM) has 126 more horse power than 1990 Renault 21. (75 HP @ 5000 RPM). In normal driving conditions, 2009 Citroen C6 should accelerate faster than 1990 Renault 21. With that said, vehicle weight also plays an important factor in acceleration. 2009 Citroen C6 weights approximately 850 kg more than 1990 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, 2009 Citroen C6 (440 Nm @ 1900 RPM) has 311 more torque (in Nm) than 1990 Renault 21. (129 Nm @ 3250 RPM). This means 2009 Citroen C6 will have an easier job in driving up hills or pulling heavy equipment than 1990 Renault 21. 2009 Citroen C6 has automatic transmission and 1990 Renault 21 has manual transmission. 1990 Renault 21 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Citroen C6 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Citroen C6 | 1990 Renault 21 | |
| Make | Citroen | Renault |
| Model | C6 | 21 |
| Year Released | 2009 | 1990 |
| Engine Position | Front | Front |
| Engine Size | 2720 cc | 1721 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 201 HP | 75 HP |
| Engine RPM | 4200 RPM | 5000 RPM |
| Torque | 440 Nm | 129 Nm |
| Torque RPM | 1900 RPM | 3250 RPM |
| Engine Bore Size | 81 mm | 81 mm |
| Engine Stroke Size | 88 mm | 83.5 mm |
| Engine Compression Ratio | 17.3:1 | 9.2:1 |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1870 kg | 1020 kg |
| Vehicle Length | 4910 mm | 4650 mm |
| Vehicle Width | 1870 mm | 1720 mm |
| Vehicle Height | 1470 mm | 1430 mm |
| Wheelbase Size | 2910 mm | 2820 mm |
