2007 Infiniti QX56 vs. 2011 BMW 550
To start off, 2011 BMW 550 is newer by 4 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, 2011 BMW 550 (400 HP @ 5500 RPM) has 80 more horse power than 2007 Infiniti QX56. (320 HP @ 4900 RPM) In normal driving conditions, 2011 BMW 550 should accelerate faster than 2007 Infiniti QX56.
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, 2011 BMW 550 (609 Nm @ 1750 RPM) has 76 more torque (in Nm) than 2007 Infiniti QX56. (533 Nm @ 3600 RPM). This means 2011 BMW 550 will have an easier job in driving up hills or pulling heavy equipment than 2007 Infiniti QX56.
Compare all specifications:
| 2007 Infiniti QX56 | 2011 BMW 550 | |
| Make | Infiniti | BMW |
| Model | QX56 | 550 |
| Year Released | 2007 | 2011 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5552 cc | 4400 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 320 HP | 400 HP |
| Engine RPM | 4900 RPM | 5500 RPM |
| Torque | 533 Nm | 609 Nm |
| Torque RPM | 3600 RPM | 1750 RPM |
| Fuel Type | Diesel | Gasoline - Premium |
| Drive Type | 4WD | AWD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 7 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Length | 5260 mm | 4905 mm |
| Vehicle Width | 2010 mm | 1859 mm |
| Vehicle Height | 1980 mm | 1463 mm |
| Wheelbase Size | 3140 mm | 2969 mm |
| Fuel Consumption Highway | 13.1 L/100km | 9.8 L/100km |
| Fuel Consumption City | 18.1 L/100km | 14.7 L/100km |
| Fuel Tank Capacity | 106 L | 70 L |
