2009 Mercedes-Benz SL vs. 2011 Mercedes-Benz R
To start off, 2011 Mercedes-Benz R is newer by 2 year(s). Which means there will be less support and parts availability for 2009 Mercedes-Benz SL. In addition, the cost of maintenance, including insurance, on 2009 Mercedes-Benz SL would be higher. At 5,513 cc (12 cylinders), 2009 Mercedes-Benz SL is equipped with a bigger engine. In terms of performance, 2009 Mercedes-Benz SL (510 HP @ 5000 RPM) has 242 more horse power than 2011 Mercedes-Benz R. (268 HP @ 6000 RPM). In normal driving conditions, 2009 Mercedes-Benz SL should accelerate faster than 2011 Mercedes-Benz R. With that said, vehicle weight also plays an important factor in acceleration. 2011 Mercedes-Benz R weights approximately 1020 kg more than 2009 Mercedes-Benz SL.
Because 2011 Mercedes-Benz R is all wheel drive (AWD), it will have significant more traction and grip than 2009 Mercedes-Benz SL. In wet, icy, snow, or gravel driving conditions, 2011 Mercedes-Benz R 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 Mercedes-Benz SL (830 Nm @ 1900 RPM) has 481 more torque (in Nm) than 2011 Mercedes-Benz R. (349 Nm @ 2400 RPM). This means 2009 Mercedes-Benz SL will have an easier job in driving up hills or pulling heavy equipment than 2011 Mercedes-Benz R.
Compare all specifications:
| 2009 Mercedes-Benz SL | 2011 Mercedes-Benz R | |
| Make | Mercedes-Benz | Mercedes-Benz |
| Model | SL | R |
| Year Released | 2009 | 2011 |
| Body Type | Convertible | Minivan |
| Engine Position | Front | Front |
| Engine Size | 5513 cc | 3500 cc |
| Engine Cylinders | 12 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 3 valves | 4 valves |
| Horse Power | 510 HP | 268 HP |
| Engine RPM | 5000 RPM | 6000 RPM |
| Torque | 830 Nm | 349 Nm |
| Torque RPM | 1900 RPM | 2400 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | AWD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 2 seats | 6 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1225 kg | 2245 kg |
| Vehicle Length | 4540 mm | 5156 mm |
| Vehicle Width | 1820 mm | 1958 mm |
| Vehicle Height | 1300 mm | 1661 mm |
| Wheelbase Size | 2570 mm | 3216 mm |
| Fuel Consumption Highway | 13.1 L/100km | 12.4 L/100km |
| Fuel Tank Capacity | 80 L | 80 L |
