2007 Infiniti QX56 vs. 2009 Mercury Grand Marquis
To start off, 2009 Mercury Grand Marquis is newer by 2 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 96 more horse power than 2009 Mercury Grand Marquis. (224 HP @ 4800 RPM). In normal driving conditions, 2007 Infiniti QX56 should accelerate faster than 2009 Mercury Grand Marquis.
Because 2007 Infiniti QX56 is four wheel drive (4WD), it will have significant more traction and grip than 2009 Mercury Grand Marquis. In wet, icy, snow, or gravel driving conditions, 2007 Infiniti QX56 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, 2007 Infiniti QX56 (533 Nm @ 3600 RPM) has 160 more torque (in Nm) than 2009 Mercury Grand Marquis. (373 Nm @ 4000 RPM). This means 2007 Infiniti QX56 will have an easier job in driving up hills or pulling heavy equipment than 2009 Mercury Grand Marquis.
Compare all specifications:
| 2007 Infiniti QX56 | 2009 Mercury Grand Marquis | |
| Make | Infiniti | Mercury |
| Model | QX56 | Grand Marquis |
| Year Released | 2007 | 2009 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5552 cc | 4606 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 320 HP | 224 HP |
| Engine RPM | 4900 RPM | 4800 RPM |
| Torque | 533 Nm | 373 Nm |
| Torque RPM | 3600 RPM | 4000 RPM |
| Fuel Type | Diesel | Diesel |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 7 seats | 6 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Length | 5260 mm | 5390 mm |
| Vehicle Width | 2010 mm | 2000 mm |
| Vehicle Height | 1980 mm | 1440 mm |
| Wheelbase Size | 3140 mm | 2920 mm |
| Fuel Consumption Highway | 13.1 L/100km | 11.2 L/100km |
| Fuel Consumption City | 18.1 L/100km | 16.8 L/100km |
| Fuel Consumption Overall | 15.7 L/100km | 10.7 L/100km |
| Fuel Tank Capacity | 106 L | 72 L |
