2009 Lexus LS vs. 1999 Lexus IS
To start off, 2009 Lexus LS is newer by 10 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 4,605 cc (8 cylinders), 2009 Lexus LS is equipped with a bigger engine. In terms of performance, 2009 Lexus LS (358 HP @ 6400 RPM) has 205 more horse power than 1999 Lexus IS. (153 HP @ 6200 RPM). In normal driving conditions, 2009 Lexus LS should accelerate faster than 1999 Lexus IS. With that said, vehicle weight also plays an important factor in acceleration. 2009 Lexus LS weights approximately 340 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.
Because 2009 Lexus LS is four wheel drive (4WD), it will have significant more traction and grip than 1999 Lexus IS. In wet, icy, snow, or gravel driving conditions, 2009 Lexus LS 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, 2009 Lexus LS (466 Nm @ 4100 RPM) has 271 more torque (in Nm) than 1999 Lexus IS. (195 Nm @ 4600 RPM). This means 2009 Lexus LS will have an easier job in driving up hills or pulling heavy equipment than 1999 Lexus IS. 2009 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. 2009 Lexus LS will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Lexus LS | 1999 Lexus IS | |
| Make | Lexus | Lexus |
| Model | LS | IS |
| Year Released | 2009 | 1999 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4605 cc | 1988 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 358 HP | 153 HP |
| Engine RPM | 6400 RPM | 6200 RPM |
| Torque | 466 Nm | 195 Nm |
| Torque RPM | 4100 RPM | 4600 RPM |
| Engine Bore Size | 94 mm | 75 mm |
| Engine Stroke Size | 83 mm | 75 mm |
| Engine Compression Ratio | 11.8:1 | 10.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Manual |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1740 kg | 1400 kg |
| Vehicle Length | 5160 mm | 4410 mm |
| Vehicle Width | 1880 mm | 1730 mm |
| Vehicle Height | 1490 mm | 1430 mm |
| Wheelbase Size | 3100 mm | 2680 mm |
| Fuel Tank Capacity | 84 L | 70 L |
