2006 Lexus IS vs. 2005 Lexus GX
To start off, 2006 Lexus IS is newer by 1 year(s). Which means there will be less support and parts availability for 2005 Lexus GX. In addition, the cost of maintenance, including insurance, on 2005 Lexus GX would be higher. At 4,671 cc (8 cylinders), 2005 Lexus GX is equipped with a bigger engine. In terms of performance, 2005 Lexus GX (270 HP @ 5600 RPM) has 117 more horse power than 2006 Lexus IS. (153 HP @ 6200 RPM) In normal driving conditions, 2005 Lexus GX should accelerate faster than 2006 Lexus IS. With that said, vehicle weight also plays an important factor in acceleration. 2005 Lexus GX weights approximately 759 kg more than 2006 Lexus IS. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Lexus GX is four wheel drive (4WD), it will have significant more traction and grip than 2006 Lexus IS. In wet, icy, snow, or gravel driving conditions, 2005 Lexus GX 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, 2005 Lexus GX (434 Nm) has 239 more torque (in Nm) than 2006 Lexus IS. (195 Nm). This means 2005 Lexus GX will have an easier job in driving up hills or pulling heavy equipment than 2006 Lexus IS.
Compare all specifications:
| 2006 Lexus IS | 2005 Lexus GX | |
| Make | Lexus | Lexus |
| Model | IS | GX |
| Year Released | 2006 | 2005 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 1988 cc | 4671 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 153 HP | 270 HP |
| Engine RPM | 6200 RPM | 5600 RPM |
| Torque | 195 Nm | 434 Nm |
| Engine Bore Size | 75.1 mm | 94 mm |
| Engine Stroke Size | 75 mm | 84 mm |
| Engine Compression Ratio | 10.0:1 | 10.0:1 |
| Drive Type | Rear | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1455 kg | 2214 kg |
| Vehicle Length | 4410 mm | 4790 mm |
| Vehicle Width | 1730 mm | 1890 mm |
| Vehicle Height | 1430 mm | 1900 mm |
| Wheelbase Size | 2680 mm | 2860 mm |
| Fuel Consumption Overall | 9.9 L/100km | 14.7 L/100km |
| Fuel Tank Capacity | 70 L | 87 L |
