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 159 more horse power than 2007 Mercedes-Benz C. (161 HP @ 5300 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. 2009 Infiniti QX56 weights approximately 199 kg more than 2007 Mercedes-Benz C. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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 293 more torque (in Nm) than 2007 Mercedes-Benz C. (240 Nm @ 3000 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 | 1794 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 320 HP | 161 HP |
| Engine RPM | 5200 RPM | 5300 RPM |
| Torque | 533 Nm | 240 Nm |
| Torque RPM | 3400 RPM | 3000 RPM |
| Engine Compression Ratio | 10.3:1 | 9.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 7 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1719 kg | 1520 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 Overall | 16.8 L/100km | 8.7 L/100km |
| Fuel Tank Capacity | 106 L | 62 L |
