2009 Lexus IS vs. 2011 Lexus IS
To start off, 2011 Lexus IS is newer by 2 year(s). Which means there will be less support and parts availability for 2009 Lexus IS. In addition, the cost of maintenance, including insurance, on 2009 Lexus IS would be higher. At 2,499 cc (6 cylinders), 2009 Lexus IS is equipped with a bigger engine. In terms of performance, 2009 Lexus IS (204 HP @ 6400 RPM) has 54 more horse power than 2011 Lexus IS. (150 HP @ 3600 RPM). In normal driving conditions, 2009 Lexus IS should accelerate faster than 2011 Lexus IS. With that said, vehicle weight also plays an important factor in acceleration. 2009 Lexus IS weights approximately 220 kg more than 2011 Lexus IS. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Lexus IS is four wheel drive (4WD), it will have significant more traction and grip than 2011 Lexus IS. In wet, icy, snow, or gravel driving conditions, 2009 Lexus IS 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, 2011 Lexus IS (340 Nm @ 2000 RPM) has 89 more torque (in Nm) than 2009 Lexus IS. (251 Nm @ 4800 RPM). This means 2011 Lexus IS will have an easier job in driving up hills or pulling heavy equipment than 2009 Lexus IS.
Compare all specifications:
| 2009 Lexus IS | 2011 Lexus IS | |
| Make | Lexus | Lexus |
| Model | IS | IS |
| Year Released | 2009 | 2011 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2499 cc | 2231 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 204 HP | 150 HP |
| Engine RPM | 6400 RPM | 3600 RPM |
| Torque | 251 Nm | 340 Nm |
| Torque RPM | 4800 RPM | 2000 RPM |
| Fuel Type | Gasoline | Diesel |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | 6-speed shiftable automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1765 kg | 1545 kg |
| Vehicle Length | 4590 mm | 4585 mm |
| Vehicle Width | 1810 mm | 1801 mm |
| Vehicle Height | 1450 mm | 1440 mm |
| Wheelbase Size | 2740 mm | 2731 mm |
| Fuel Tank Capacity | 65 L | 65 L |
