2007 Infiniti QX56 vs. 2012 Mercedes-Benz S
To start off, 2012 Mercedes-Benz S is newer by 5 year(s). Which means there will be less support and parts availability for 2007 Infiniti QX56. In addition, the cost of maintenance, including insurance, on 2007 Infiniti QX56 would be higher. At 5,552 cc (8 cylinders), 2007 Infiniti QX56 is equipped with a bigger engine. In terms of performance, 2007 Infiniti QX56 (320 HP @ 4900 RPM) has 66 more horse power than 2012 Mercedes-Benz S. (254 HP @ 3600 RPM). In normal driving conditions, 2007 Infiniti QX56 should accelerate faster than 2012 Mercedes-Benz S.
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, 2012 Mercedes-Benz S (620 Nm @ 1600 RPM) has 87 more torque (in Nm) than 2007 Infiniti QX56. (533 Nm @ 3600 RPM). This means 2012 Mercedes-Benz S will have an easier job in driving up hills or pulling heavy equipment than 2007 Infiniti QX56.
Compare all specifications:
| 2007 Infiniti QX56 | 2012 Mercedes-Benz S | |
| Make | Infiniti | Mercedes-Benz |
| Model | QX56 | S |
| Year Released | 2007 | 2012 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5552 cc | 2987 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 320 HP | 254 HP |
| Engine RPM | 4900 RPM | 3600 RPM |
| Torque | 533 Nm | 620 Nm |
| Torque RPM | 3600 RPM | 1600 RPM |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | 7-speed shiftable automatic |
| Number of Seats | 7 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Length | 5260 mm | 5096 mm |
| Vehicle Width | 2010 mm | 1872 mm |
| Vehicle Height | 1960 mm | 1473 mm |
| Wheelbase Size | 3140 mm | 3165 mm |
| Fuel Tank Capacity | 106 L | 90 L |
