2003 Lexus LS vs. 1999 Lexus IS
To start off, 2003 Lexus LS is newer by 4 year(s). Which means there will be less support and parts availability for 1999 Lexus IS. In addition, the cost of maintenance, including insurance, on 1999 Lexus IS would be higher. At 4,293 cc (8 cylinders), 2003 Lexus LS is equipped with a bigger engine. In terms of performance, 2003 Lexus LS (282 HP @ 5600 RPM) has 129 more horse power than 1999 Lexus IS. (153 HP @ 6200 RPM). In normal driving conditions, 2003 Lexus LS should accelerate faster than 1999 Lexus IS. With that said, vehicle weight also plays an important factor in acceleration. 2003 Lexus LS weights approximately 430 kg more than 1999 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 LS (418 Nm @ 3500 RPM) has 223 more torque (in Nm) than 1999 Lexus IS. (195 Nm @ 4600 RPM). This means 2003 Lexus LS will have an easier job in driving up hills or pulling heavy equipment than 1999 Lexus IS. 2003 Lexus LS has automatic transmission and 1999 Lexus IS has manual transmission. 1999 Lexus IS will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 Lexus LS will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Lexus LS | 1999 Lexus IS | |
| Make | Lexus | Lexus |
| Model | LS | IS |
| Year Released | 2003 | 1999 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4293 cc | 1988 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 282 HP | 153 HP |
| Engine RPM | 5600 RPM | 6200 RPM |
| Torque | 418 Nm | 195 Nm |
| Torque RPM | 3500 RPM | 4600 RPM |
| Engine Bore Size | 91 mm | 75 mm |
| Engine Stroke Size | 82.5 mm | 75 mm |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Manual |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1830 kg | 1400 kg |
| Vehicle Length | 5010 mm | 4410 mm |
| Vehicle Width | 1840 mm | 1730 mm |
| Vehicle Height | 1480 mm | 1430 mm |
| Wheelbase Size | 2930 mm | 2680 mm |
| Fuel Tank Capacity | 84 L | 70 L |
