2005 Kia Optima vs. 2008 Lexus GS
To start off, 2008 Lexus GS is newer by 3 year(s). Which means there will be less support and parts availability for 2005 Kia Optima. In addition, the cost of maintenance, including insurance, on 2005 Kia Optima would be higher. At 3,441 cc (6 cylinders), 2008 Lexus GS is equipped with a bigger engine. In terms of performance, 2008 Lexus GS (304 HP @ 6200 RPM) has 134 more horse power than 2005 Kia Optima. (170 HP @ 4000 RPM) In normal driving conditions, 2008 Lexus GS should accelerate faster than 2005 Kia Optima. With that said, vehicle weight also plays an important factor in acceleration. 2008 Lexus GS weights approximately 253 kg more than 2005 Kia Optima. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 Lexus GS is four wheel drive (4WD), it will have significant more traction and grip than 2005 Kia Optima. In wet, icy, snow, or gravel driving conditions, 2008 Lexus GS 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, 2008 Lexus GS (372 Nm) has 131 more torque (in Nm) than 2005 Kia Optima. (241 Nm). This means 2008 Lexus GS will have an easier job in driving up hills or pulling heavy equipment than 2005 Kia Optima.
Compare all specifications:
| 2005 Kia Optima | 2008 Lexus GS | |
| Make | Kia | Lexus |
| Model | Optima | GS |
| Year Released | 2005 | 2008 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2671 cc | 3441 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 170 HP | 304 HP |
| Engine RPM | 4000 RPM | 6200 RPM |
| Torque | 241 Nm | 372 Nm |
| Drive Type | Front | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1487 kg | 1740 kg |
| Vehicle Length | 4730 mm | 4830 mm |
| Vehicle Width | 1820 mm | 1830 mm |
| Vehicle Height | 1420 mm | 1440 mm |
| Wheelbase Size | 2710 mm | 2860 mm |
| Fuel Consumption | 8.9 L/100km | 9.4 L/100km |
| Fuel Consumption City | 11.9 L/100km | 13.1 L/100km |
| Fuel Consumption Overall | 10.4 L/100km | 11.8 L/100km |
| Fuel Tank Capacity | 65 L | 71 L |
