2009 Lexus IS vs. 2005 Mercedes-Benz R
To start off, 2009 Lexus IS is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Mercedes-Benz R. In addition, the cost of maintenance, including insurance, on 2005 Mercedes-Benz R would be higher. At 3,498 cc (6 cylinders), 2005 Mercedes-Benz R is equipped with a bigger engine. In terms of performance, 2005 Mercedes-Benz R (268 HP) has 64 more horse power than 2009 Lexus IS. (204 HP) In normal driving conditions, 2005 Mercedes-Benz R should accelerate faster than 2009 Lexus IS. With that said, vehicle weight also plays an important factor in acceleration. 2005 Mercedes-Benz R weights approximately 440 kg more than 2009 Lexus IS. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or rear 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, 2005 Mercedes-Benz R (350 Nm @ 2400 RPM) has 99 more torque (in Nm) than 2009 Lexus IS. (251 Nm @ 4800 RPM). This means 2005 Mercedes-Benz R will have an easier job in driving up hills or pulling heavy equipment than 2009 Lexus IS.
Compare all specifications:
| 2009 Lexus IS | 2005 Mercedes-Benz R | |
| Make | Lexus | Mercedes-Benz |
| Model | IS | R |
| Year Released | 2009 | 2005 |
| Body Type | Sedan | Minivan |
| Engine Position | Front | Front |
| Engine Size | 2499 cc | 3498 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 204 HP | 268 HP |
| Torque | 251 Nm | 350 Nm |
| Torque RPM | 4800 RPM | 2400 RPM |
| Engine Compression Ratio | 12.0:1 | 10.7:1 |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1765 kg | 2205 kg |
| Vehicle Length | 4590 mm | 5160 mm |
| Vehicle Width | 1810 mm | 1930 mm |
| Vehicle Height | 1450 mm | 1660 mm |
| Wheelbase Size | 2740 mm | 3220 mm |
| Fuel Tank Capacity | 65 L | 80 L |
