2008 Infiniti M vs. 2012 Infiniti QX56
To start off, 2012 Infiniti QX56 is newer by 4 year(s). Which means there will be less support and parts availability for 2008 Infiniti M. In addition, the cost of maintenance, including insurance, on 2008 Infiniti M would be higher. At 5,600 cc (8 cylinders), 2012 Infiniti QX56 is equipped with a bigger engine. In terms of performance, 2012 Infiniti QX56 (400 HP @ 5800 RPM) has 125 more horse power than 2008 Infiniti M. (275 HP @ 6200 RPM) In normal driving conditions, 2012 Infiniti QX56 should accelerate faster than 2008 Infiniti M. With that said, vehicle weight also plays an important factor in acceleration. 2012 Infiniti QX56 weights approximately 1218 kg more than 2008 Infiniti M. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 Infiniti M is four wheel drive (4WD), it will have significant more traction and grip than 2012 Infiniti QX56. In wet, icy, snow, or gravel driving conditions, 2008 Infiniti M 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, 2012 Infiniti QX56 (559 Nm @ 4000 RPM) has 196 more torque (in Nm) than 2008 Infiniti M. (363 Nm @ 4800 RPM). This means 2012 Infiniti QX56 will have an easier job in driving up hills or pulling heavy equipment than 2008 Infiniti M.
Compare all specifications:
| 2008 Infiniti M | 2012 Infiniti QX56 | |
| Make | Infiniti | Infiniti |
| Model | M | QX56 |
| Year Released | 2008 | 2012 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 3498 cc | 5600 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 275 HP | 400 HP |
| Engine RPM | 6200 RPM | 5800 RPM |
| Torque | 363 Nm | 559 Nm |
| Torque RPM | 4800 RPM | 4000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | 7-speed shiftable automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1320 kg | 2538 kg |
| Vehicle Length | 4900 mm | 5291 mm |
| Vehicle Width | 1800 mm | 2029 mm |
| Vehicle Height | 1530 mm | 1925 mm |
| Wheelbase Size | 2910 mm | 3076 mm |
| Fuel Consumption | 10.7 L/100km | 11.8 L/100km |
| Fuel Consumption City | 14.7 L/100km | 16.8 L/100km |
| Fuel Tank Capacity | 76 L | 98 L |
