2009 Infiniti QX56 vs. 2010 Mercedes-Benz SL
To start off, 2010 Mercedes-Benz SL is newer by 1 year(s). Which means there will be less support and parts availability for 2009 Infiniti QX56. In addition, the cost of maintenance, including insurance, on 2009 Infiniti QX56 would be higher. At 5,552 cc (8 cylinders), 2009 Infiniti QX56 is equipped with a bigger engine. In terms of performance, 2010 Mercedes-Benz SL (382 HP @ 6000 RPM) has 62 more horse power than 2009 Infiniti QX56. (320 HP @ 5200 RPM) In normal driving conditions, 2010 Mercedes-Benz SL should accelerate faster than 2009 Infiniti QX56. With that said, vehicle weight also plays an important factor in acceleration. 2010 Mercedes-Benz SL weights approximately 1111 kg more than 2009 Infiniti QX56. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front 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, 2009 Infiniti QX56 (533 Nm @ 3400 RPM) has 3 more torque (in Nm) than 2010 Mercedes-Benz SL. (530 Nm @ 2800 RPM). This means 2009 Infiniti QX56 will have an easier job in driving up hills or pulling heavy equipment than 2010 Mercedes-Benz SL.
Compare all specifications:
| 2009 Infiniti QX56 | 2010 Mercedes-Benz SL | |
| Make | Infiniti | Mercedes-Benz |
| Model | QX56 | SL |
| Year Released | 2009 | 2010 |
| Body Type | SUV | Convertible |
| Engine Position | Front | Front |
| Engine Size | 5552 cc | 5461 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 320 HP | 382 HP |
| Engine RPM | 5200 RPM | 6000 RPM |
| Torque | 533 Nm | 530 Nm |
| Torque RPM | 3400 RPM | 2800 RPM |
| Engine Compression Ratio | 10.3:1 | 10.7:1 |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 7 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1719 kg | 2830 kg |
| Vehicle Length | 5260 mm | 4540 mm |
| Vehicle Width | 2010 mm | 1820 mm |
| Vehicle Height | 1980 mm | 1300 mm |
| Wheelbase Size | 3140 mm | 2570 mm |
| Fuel Consumption Highway | 13.1 L/100km | 11.2 L/100km |
| Fuel Consumption City | 19.6 L/100km | 18.1 L/100km |
| Fuel Consumption Overall | 16.8 L/100km | 14.7 L/100km |
| Fuel Tank Capacity | 106 L | 80 L |
