2005 Lexus IS vs. 2006 Lexus RX
To start off, 2006 Lexus RX is newer by 1 year(s). Which means there will be less support and parts availability for 2005 Lexus IS. In addition, the cost of maintenance, including insurance, on 2005 Lexus IS would be higher. At 2,995 cc (6 cylinders), 2006 Lexus RX is equipped with a bigger engine. In terms of performance, 2006 Lexus RX (201 HP @ 5600 RPM) has 48 more horse power than 2005 Lexus IS. (153 HP @ 6200 RPM) In normal driving conditions, 2006 Lexus RX should accelerate faster than 2005 Lexus IS. With that said, vehicle weight also plays an important factor in acceleration. 2006 Lexus RX weights approximately 34 kg more than 2005 Lexus IS. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 Lexus RX is four wheel drive (4WD), it will have significant more traction and grip than 2005 Lexus IS. In wet, icy, snow, or gravel driving conditions, 2006 Lexus RX 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, 2006 Lexus RX (283 Nm @ 4500 RPM) has 88 more torque (in Nm) than 2005 Lexus IS. (195 Nm @ 4600 RPM). This means 2006 Lexus RX will have an easier job in driving up hills or pulling heavy equipment than 2005 Lexus IS. 2006 Lexus RX has automatic transmission and 2005 Lexus IS has manual transmission. 2005 Lexus IS will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2006 Lexus RX will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Lexus IS | 2006 Lexus RX | |
| Make | Lexus | Lexus |
| Model | IS | RX |
| Year Released | 2005 | 2006 |
| Body Type | Station Wagon | SUV |
| Engine Position | Front | Front |
| Engine Size | 1988 cc | 2995 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 153 HP | 201 HP |
| Engine RPM | 6200 RPM | 5600 RPM |
| Torque | 195 Nm | 283 Nm |
| Torque RPM | 4600 RPM | 4500 RPM |
| Engine Compression Ratio | 10.0:1 | 10.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 215 km/hour | 175 km/hour |
| Acceleration 0-100mph | 9.5 seconds | 9 seconds |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1506 kg | 1540 kg |
| Vehicle Length | 4510 mm | 4750 mm |
| Vehicle Width | 1730 mm | 1850 mm |
| Vehicle Height | 1440 mm | 1680 mm |
| Wheelbase Size | 2680 mm | 2720 mm |
| Fuel Consumption Overall | 9.9 L/100km | 12.2 L/100km |
| Fuel Tank Capacity | 70 L | 72 L |
