2007 Infiniti QX56 vs. 2003 Mercedes-Benz SL
To start off, 2007 Infiniti QX56 is newer by 4 year(s). Which means there will be less support and parts availability for 2003 Mercedes-Benz SL. In addition, the cost of maintenance, including insurance, on 2003 Mercedes-Benz SL would be higher. At 5,552 cc (8 cylinders), 2007 Infiniti QX56 is equipped with a bigger engine. In terms of performance, 2003 Mercedes-Benz SL (493 HP @ 5000 RPM) has 173 more horse power than 2007 Infiniti QX56. (320 HP @ 4900 RPM) In normal driving conditions, 2003 Mercedes-Benz SL should accelerate faster than 2007 Infiniti QX56.
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, 2003 Mercedes-Benz SL (800 Nm @ 1800 RPM) has 267 more torque (in Nm) than 2007 Infiniti QX56. (533 Nm @ 3600 RPM). This means 2003 Mercedes-Benz SL will have an easier job in driving up hills or pulling heavy equipment than 2007 Infiniti QX56.
Compare all specifications:
| 2007 Infiniti QX56 | 2003 Mercedes-Benz SL | |
| Make | Infiniti | Mercedes-Benz |
| Model | QX56 | SL |
| Year Released | 2007 | 2003 |
| Body Type | SUV | Convertible |
| Engine Position | Front | Front |
| Engine Size | 5552 cc | 5513 cc |
| Engine Cylinders | 8 cylinders | 12 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 3 valves |
| Horse Power | 320 HP | 493 HP |
| Engine RPM | 4900 RPM | 5000 RPM |
| Torque | 533 Nm | 800 Nm |
| Torque RPM | 3600 RPM | 1800 RPM |
| Fuel Type | Diesel | Gasoline - Premium |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 7 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Length | 5260 mm | 4540 mm |
| Vehicle Width | 2010 mm | 1830 mm |
| Vehicle Height | 1960 mm | 1300 mm |
| Wheelbase Size | 3140 mm | 2570 mm |
| Fuel Consumption Overall | 15.7 L/100km | 14.7 L/100km |
| Fuel Tank Capacity | 106 L | 80 L |
