2009 Audi Q7 vs. 2007 Mercedes-Benz C
To start off, 2009 Audi Q7 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 4,133 cc (8 cylinders), 2009 Audi Q7 is equipped with a bigger engine. In terms of performance, 2009 Audi Q7 (322 HP @ 3750 RPM) has 94 more horse power than 2007 Mercedes-Benz C. (228 HP @ 6000 RPM). In normal driving conditions, 2009 Audi Q7 should accelerate faster than 2007 Mercedes-Benz C. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi Q7 weights approximately 780 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.
Because 2009 Audi Q7 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 Audi Q7 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 Audi Q7 (760 Nm @ 2500 RPM) has 460 more torque (in Nm) than 2007 Mercedes-Benz C. (300 Nm @ 2500 RPM). This means 2009 Audi Q7 will have an easier job in driving up hills or pulling heavy equipment than 2007 Mercedes-Benz C.
Compare all specifications:
| 2009 Audi Q7 | 2007 Mercedes-Benz C | |
| Make | Audi | Mercedes-Benz |
| Model | Q7 | C |
| Year Released | 2009 | 2007 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4133 cc | 2996 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 322 HP | 228 HP |
| Engine RPM | 3750 RPM | 6000 RPM |
| Torque | 760 Nm | 300 Nm |
| Torque RPM | 2500 RPM | 2500 RPM |
| Engine Bore Size | 83 mm | 88.1 mm |
| Engine Stroke Size | 95.5 mm | 82.1 mm |
| Engine Compression Ratio | 16.5:1 | 11.1:1 |
| Fuel Type | Diesel | Gasoline |
| Acceleration 0-100mph | 6.4 seconds | 7 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 7 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 2420 kg | 1640 kg |
| Vehicle Length | 5090 mm | 4530 mm |
| Vehicle Width | 2090 mm | 1430 mm |
| Vehicle Height | 1780 mm | 1730 mm |
| Wheelbase Size | 3010 mm | 2720 mm |
| Fuel Consumption Overall | 11.1 L/100km | 9.4 L/100km |
| Fuel Tank Capacity | 100 L | 62 L |
