2006 Kia Optima vs. 2005 Lexus RX
To start off, 2006 Kia Optima is newer by 1 year(s). Which means there will be less support and parts availability for 2005 Lexus RX. In addition, the cost of maintenance, including insurance, on 2005 Lexus RX would be higher. At 3,310 cc (6 cylinders), 2005 Lexus RX is equipped with a bigger engine. In terms of performance, 2005 Lexus RX (231 HP @ 5800 RPM) has 93 more horse power than 2006 Kia Optima. (138 HP @ 5500 RPM) In normal driving conditions, 2005 Lexus RX should accelerate faster than 2006 Kia Optima. With that said, vehicle weight also plays an important factor in acceleration. 2006 Kia Optima weights approximately 253 kg more than 2005 Lexus RX.
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, 2005 Lexus RX (328 Nm) has 129 more torque (in Nm) than 2006 Kia Optima. (199 Nm). This means 2005 Lexus RX will have an easier job in driving up hills or pulling heavy equipment than 2006 Kia Optima.
Compare all specifications:
2006 Kia Optima | 2005 Lexus RX | |
Make | Kia | Lexus |
Model | Optima | RX |
Year Released | 2006 | 2005 |
Body Type | Sedan | SUV |
Engine Position | Front | Front |
Engine Size | 2360 cc | 3310 cc |
Engine Cylinders | 4 cylinders | 6 cylinders |
Engine Type | in-line | V |
Valves per Cylinder | 4 valves | 4 valves |
Horse Power | 138 HP | 231 HP |
Engine RPM | 5500 RPM | 5800 RPM |
Torque | 199 Nm | 328 Nm |
Engine Bore Size | 81 mm | 92 mm |
Engine Stroke Size | 88 mm | 83 mm |
Engine Compression Ratio | 10.0:1 | 10.8:1 |
Drive Type | Front | Front |
Number of Seats | 5 seats | 5 seats |
Number of Doors | 4 doors | 5 doors |
Vehicle Weight | 2004 kg | 1751 kg |
Vehicle Length | 4730 mm | 4740 mm |
Vehicle Width | 1820 mm | 1850 mm |
Vehicle Height | 1420 mm | 1690 mm |
Wheelbase Size | 2710 mm | 2720 mm |
Fuel Consumption | 7.8 L/100km | 9.4 L/100km |
Fuel Consumption City | 10.7 L/100km | 12.4 L/100km |
Fuel Consumption Overall | 9.4 L/100km | 10.7 L/100km |
Fuel Tank Capacity | 65 L | 73 L |