2005 Porsche Cayenne vs. 1990 Renault 21
To start off, 2005 Porsche Cayenne is newer by 15 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 3,195 cc (6 cylinders), 2005 Porsche Cayenne is equipped with a bigger engine. In terms of performance, 2005 Porsche Cayenne (247 HP @ 6000 RPM) has 172 more horse power than 1990 Renault 21. (75 HP @ 5000 RPM). In normal driving conditions, 2005 Porsche Cayenne should accelerate faster than 1990 Renault 21. With that said, vehicle weight also plays an important factor in acceleration. 2005 Porsche Cayenne weights approximately 1140 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.
Because 2005 Porsche Cayenne is four wheel drive (4WD), it will have significant more traction and grip than 1990 Renault 21. In wet, icy, snow, or gravel driving conditions, 2005 Porsche Cayenne will offer significantly more control. 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, 2005 Porsche Cayenne (311 Nm) has 182 more torque (in Nm) than 1990 Renault 21. (129 Nm). This means 2005 Porsche Cayenne will have an easier job in driving up hills or pulling heavy equipment than 1990 Renault 21.
Compare all specifications:
| 2005 Porsche Cayenne | 1990 Renault 21 | |
| Make | Porsche | Renault |
| Model | Cayenne | 21 |
| Year Released | 2005 | 1990 |
| Engine Position | Front | Front |
| Engine Size | 3195 cc | 1721 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 247 HP | 75 HP |
| Engine RPM | 6000 RPM | 5000 RPM |
| Torque | 311 Nm | 129 Nm |
| Engine Bore Size | 84 mm | 81 mm |
| Engine Stroke Size | 96 mm | 83.5 mm |
| Engine Compression Ratio | 11.5:1 | 9.2:1 |
| Drive Type | 4WD | Front |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 2160 kg | 1020 kg |
| Vehicle Length | 4790 mm | 4650 mm |
| Vehicle Width | 1930 mm | 1720 mm |
| Vehicle Height | 1710 mm | 1430 mm |
| Wheelbase Size | 2860 mm | 2820 mm |
