2007 Kia Optima vs. 2006 Lexus RX
To start off, 2007 Kia Optima is newer by 1 year(s). Which means there will be less support and parts availability for 2006 Lexus RX. In addition, the cost of maintenance, including insurance, on 2006 Lexus RX would be higher. At 3,310 cc (6 cylinders), 2006 Lexus RX is equipped with a bigger engine. In terms of performance, 2006 Lexus RX (223 HP @ 5600 RPM) has 61 more horse power than 2007 Kia Optima. (162 HP @ 5800 RPM) In normal driving conditions, 2006 Lexus RX should accelerate faster than 2007 Kia Optima.
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, 2006 Lexus RX (323 Nm @ 3600 RPM) has 101 more torque (in Nm) than 2007 Kia Optima. (222 Nm @ 4260 RPM). This means 2006 Lexus RX will have an easier job in driving up hills or pulling heavy equipment than 2007 Kia Optima.
Compare all specifications:
| 2007 Kia Optima | 2006 Lexus RX | |
| Make | Kia | Lexus |
| Model | Optima | RX |
| Year Released | 2007 | 2006 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 2399 cc | 3310 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 162 HP | 223 HP |
| Engine RPM | 5800 RPM | 5600 RPM |
| Torque | 222 Nm | 323 Nm |
| Torque RPM | 4260 RPM | 3600 RPM |
| Engine Compression Ratio | 10.5:1 | 10.8:1 |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Length | 4740 mm | 4740 mm |
| Vehicle Width | 1810 mm | 1850 mm |
| Vehicle Height | 1490 mm | 1690 mm |
| Wheelbase Size | 2730 mm | 2720 mm |
| Fuel Tank Capacity | 65 L | 73 L |
