2009 Infiniti QX56 vs. 2007 Mercedes-Benz C
To start off, 2009 Infiniti QX56 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Mercedes-Benz C. In addition, the cost of maintenance, including insurance, on 2007 Mercedes-Benz C would be higher. At 5,552 cc (8 cylinders), 2009 Infiniti QX56 is equipped with a bigger engine. In terms of performance, 2009 Infiniti QX56 (320 HP @ 5200 RPM) has 48 more horse power than 2007 Mercedes-Benz C. (272 HP @ 6000 RPM). In normal driving conditions, 2009 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 885 kg more than 2009 Infiniti QX56.
Because 2009 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, 2009 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, 2009 Infiniti QX56 (533 Nm @ 3400 RPM) has 58 more torque (in Nm) than 2007 Mercedes-Benz C. (475 Nm @ 2400 RPM). This means 2009 Infiniti QX56 will have an easier job in driving up hills or pulling heavy equipment than 2007 Mercedes-Benz C.
Compare all specifications:
| 2009 Infiniti QX56 | 2007 Mercedes-Benz C | |
| Make | Infiniti | Mercedes-Benz |
| Model | QX56 | C |
| Year Released | 2009 | 2007 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5552 cc | 3498 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Horse Power | 320 HP | 272 HP |
| Engine RPM | 5200 RPM | 6000 RPM |
| Torque | 533 Nm | 475 Nm |
| Torque RPM | 3400 RPM | 2400 RPM |
| Engine Compression Ratio | 10.3:1 | 10.7:1 |
| 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 | 2205 kg |
| Vehicle Length | 5260 mm | 4590 mm |
| Vehicle Width | 2010 mm | 1780 mm |
| Vehicle Height | 2010 mm | 1450 mm |
| Wheelbase Size | 3140 mm | 2770 mm |
| Fuel Consumption Overall | 16.8 L/100km | 9.7 L/100km |
| Fuel Tank Capacity | 106 L | 62 L |
