2003 Kia Opirus vs. 2006 Nissan Xterra
To start off, 2006 Nissan Xterra is newer by 3 year(s). Which means there will be less support and parts availability for 2003 Kia Opirus. In addition, the cost of maintenance, including insurance, on 2003 Kia Opirus would be higher. At 3,950 cc (6 cylinders), 2006 Nissan Xterra is equipped with a bigger engine. In terms of performance, 2006 Nissan Xterra (265 HP @ 5600 RPM) has 69 more horse power than 2003 Kia Opirus. (196 HP @ 5500 RPM) In normal driving conditions, 2006 Nissan Xterra should accelerate faster than 2003 Kia Opirus. With that said, vehicle weight also plays an important factor in acceleration. 2003 Kia Opirus weights approximately 464 kg more than 2006 Nissan Xterra.
Because 2006 Nissan Xterra is four wheel drive (4WD), it will have significant more traction and grip than 2003 Kia Opirus. In wet, icy, snow, or gravel driving conditions, 2006 Nissan Xterra 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, 2006 Nissan Xterra (385 Nm @ 4000 RPM) has 90 more torque (in Nm) than 2003 Kia Opirus. (295 Nm @ 3500 RPM). This means 2006 Nissan Xterra will have an easier job in driving up hills or pulling heavy equipment than 2003 Kia Opirus.
Compare all specifications:
| 2003 Kia Opirus | 2006 Nissan Xterra | |
| Make | Kia | Nissan |
| Model | Opirus | Xterra |
| Year Released | 2003 | 2006 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 3497 cc | 3950 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 196 HP | 265 HP |
| Engine RPM | 5500 RPM | 5600 RPM |
| Torque | 295 Nm | 385 Nm |
| Torque RPM | 3500 RPM | 4000 RPM |
| Engine Bore Size | 93 mm | 98 mm |
| Engine Stroke Size | 85.8 mm | 92 mm |
| Drive Type | Front | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1760 kg | 1296 kg |
| Vehicle Length | 4960 mm | 4550 mm |
| Vehicle Width | 1860 mm | 1860 mm |
| Vehicle Height | 1490 mm | 1910 mm |
| Wheelbase Size | 2810 mm | 2710 mm |
