2000 Infiniti QX4 vs. 2006 Kia Optima
To start off, 2006 Kia Optima is newer by 6 year(s). Which means there will be less support and parts availability for 2000 Infiniti QX4. In addition, the cost of maintenance, including insurance, on 2000 Infiniti QX4 would be higher. At 3,496 cc (6 cylinders), 2000 Infiniti QX4 is equipped with a bigger engine. In terms of performance, 2000 Infiniti QX4 (238 HP @ 6000 RPM) has 100 more horse power than 2006 Kia Optima. (138 HP @ 5500 RPM). In normal driving conditions, 2000 Infiniti QX4 should accelerate faster than 2006 Kia Optima. With that said, vehicle weight also plays an important factor in acceleration. 2006 Kia Optima weights approximately 44 kg more than 2000 Infiniti QX4.
Because 2000 Infiniti QX4 is four wheel drive (4WD), it will have significant more traction and grip than 2006 Kia Optima. In wet, icy, snow, or gravel driving conditions, 2000 Infiniti QX4 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, 2000 Infiniti QX4 (359 Nm @ 3200 RPM) has 160 more torque (in Nm) than 2006 Kia Optima. (199 Nm @ 3000 RPM). This means 2000 Infiniti QX4 will have an easier job in driving up hills or pulling heavy equipment than 2006 Kia Optima.
Compare all specifications:
| 2000 Infiniti QX4 | 2006 Kia Optima | |
| Make | Infiniti | Kia |
| Model | QX4 | Optima |
| Year Released | 2000 | 2006 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3496 cc | 2360 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 238 HP | 138 HP |
| Engine RPM | 6000 RPM | 5500 RPM |
| Torque | 359 Nm | 199 Nm |
| Torque RPM | 3200 RPM | 3000 RPM |
| Drive Type | 4WD | Front |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1960 kg | 2004 kg |
| Vehicle Length | 4660 mm | 4730 mm |
| Vehicle Width | 1850 mm | 1820 mm |
| Vehicle Height | 1800 mm | 1420 mm |
| Wheelbase Size | 2710 mm | 2710 mm |
