2006 Kia Optima vs. 2002 Toyota Sienna
To start off, 2006 Kia Optima is newer by 4 year(s). Which means there will be less support and parts availability for 2002 Toyota Sienna. In addition, the cost of maintenance, including insurance, on 2002 Toyota Sienna would be higher. At 2,995 cc (6 cylinders), 2002 Toyota Sienna is equipped with a bigger engine. In terms of performance, 2002 Toyota Sienna (197 HP @ 5200 RPM) has 27 more horse power than 2006 Kia Optima. (170 HP @ 6000 RPM) In normal driving conditions, 2002 Toyota Sienna should accelerate faster than 2006 Kia Optima. With that said, vehicle weight also plays an important factor in acceleration. 2002 Toyota Sienna weights approximately 217 kg more than 2006 Kia Optima. 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, 2002 Toyota Sienna (283 Nm @ 4300 RPM) has 38 more torque (in Nm) than 2006 Kia Optima. (245 Nm @ 4000 RPM). This means 2002 Toyota Sienna will have an easier job in driving up hills or pulling heavy equipment than 2006 Kia Optima.
Compare all specifications:
| 2006 Kia Optima | 2002 Toyota Sienna | |
| Make | Kia | Toyota |
| Model | Optima | Sienna |
| Year Released | 2006 | 2002 |
| Body Type | Sedan | Minivan |
| Engine Position | Front | Front |
| Engine Size | 2671 cc | 2995 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 170 HP | 197 HP |
| Engine RPM | 6000 RPM | 5200 RPM |
| Torque | 245 Nm | 283 Nm |
| Torque RPM | 4000 RPM | 4300 RPM |
| Engine Bore Size | 86.7 mm | 87.6 mm |
| Engine Stroke Size | 75 mm | 83 mm |
| Engine Compression Ratio | 10.0:1 | 10.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1488 kg | 1705 kg |
| Vehicle Length | 4730 mm | 4920 mm |
| Vehicle Width | 1820 mm | 1870 mm |
| Vehicle Height | 1420 mm | 1720 mm |
| Wheelbase Size | 2710 mm | 2910 mm |
