2006 Lexus IS vs. 2003 Lexus GS
To start off, 2006 Lexus IS is newer by 3 year(s). Which means there will be less support and parts availability for 2003 Lexus GS. In addition, the cost of maintenance, including insurance, on 2003 Lexus GS would be higher. At 2,997 cc (6 cylinders), 2006 Lexus IS is equipped with a bigger engine. In terms of performance, 2003 Lexus GS (215 HP @ 5600 RPM) has 4 more horse power than 2006 Lexus IS. (211 HP @ 5800 RPM) In normal driving conditions, 2003 Lexus GS should accelerate faster than 2006 Lexus IS. With that said, vehicle weight also plays an important factor in acceleration. 2003 Lexus GS weights approximately 45 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.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front 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, 2003 Lexus GS (296 Nm @ 4200 RPM) has 7 more torque (in Nm) than 2006 Lexus IS. (289 Nm @ 3800 RPM). This means 2003 Lexus GS will have an easier job in driving up hills or pulling heavy equipment than 2006 Lexus IS.
Compare all specifications:
| 2006 Lexus IS | 2003 Lexus GS | |
| Make | Lexus | Lexus |
| Model | IS | GS |
| Year Released | 2006 | 2003 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2997 cc | 2995 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 211 HP | 215 HP |
| Engine RPM | 5800 RPM | 5600 RPM |
| Torque | 289 Nm | 296 Nm |
| Torque RPM | 3800 RPM | 4200 RPM |
| Engine Bore Size | 86 mm | 86 mm |
| Engine Stroke Size | 86 mm | 86 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 230 km/hour | 230 km/hour |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1615 kg | 1660 kg |
| Vehicle Length | 4510 mm | 4810 mm |
| Vehicle Width | 1730 mm | 1810 mm |
| Vehicle Height | 1440 mm | 1450 mm |
| Wheelbase Size | 2680 mm | 2680 mm |
| Fuel Consumption Overall | 11.2 L/100km | 11.4 L/100km |
| Fuel Tank Capacity | 70 L | 75 L |
