2006 Infiniti QX56 vs. 2007 Mercedes-Benz C
To start off, 2007 Mercedes-Benz C is newer by 1 year(s). Which means there will be less support and parts availability for 2006 Infiniti QX56. In addition, the cost of maintenance, including insurance, on 2006 Infiniti QX56 would be higher. At 5,555 cc (8 cylinders), 2006 Infiniti QX56 is equipped with a bigger engine. In terms of performance, 2006 Infiniti QX56 (315 HP @ 4900 RPM) has 47 more horse power than 2007 Mercedes-Benz C. (268 HP @ 6000 RPM). In normal driving conditions, 2006 Infiniti QX56 should accelerate faster than 2007 Mercedes-Benz C. With that said, vehicle weight also plays an important factor in acceleration. 2007 Mercedes-Benz C weights approximately 330 kg more than 2006 Infiniti QX56.
Because 2006 Infiniti QX56 is four wheel drive (4WD), it will have significant more traction and grip than 2007 Mercedes-Benz C. In wet, icy, snow, or gravel driving conditions, 2006 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, 2006 Infiniti QX56 (529 Nm @ 3600 RPM) has 179 more torque (in Nm) than 2007 Mercedes-Benz C. (350 Nm @ 2400 RPM). This means 2006 Infiniti QX56 will have an easier job in driving up hills or pulling heavy equipment than 2007 Mercedes-Benz C.
Compare all specifications:
| 2006 Infiniti QX56 | 2007 Mercedes-Benz C | |
| Make | Infiniti | Mercedes-Benz |
| Model | QX56 | C |
| Year Released | 2006 | 2007 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5555 cc | 3498 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 315 HP | 268 HP |
| Engine RPM | 4900 RPM | 6000 RPM |
| Torque | 529 Nm | 350 Nm |
| Torque RPM | 3600 RPM | 2400 RPM |
| Engine Compression Ratio | 9.8:1 | 10.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 7 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1320 kg | 1650 kg |
| Vehicle Length | 5260 mm | 4530 mm |
| Vehicle Width | 2010 mm | 1430 mm |
| Vehicle Height | 1980 mm | 1730 mm |
| Wheelbase Size | 3140 mm | 2720 mm |
| Fuel Consumption City | 18.1 L/100km | 11.8 L/100km |
| Fuel Consumption Overall | 15.7 L/100km | 9.5 L/100km |
| Fuel Tank Capacity | 106 L | 62 L |
