2009 Audi Q7 vs. 2009 Mercedes-Benz S
To start off, both 2009 Audi Q7 and 2009 Mercedes-Benz S were released in the same year (2009). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 5,513 cc (12 cylinders), 2009 Mercedes-Benz S is equipped with a bigger engine. In terms of performance, 2009 Mercedes-Benz S (510 HP @ 5000 RPM) has 281 more horse power than 2009 Audi Q7. (229 HP @ 4000 RPM) In normal driving conditions, 2009 Mercedes-Benz S should accelerate faster than 2009 Audi Q7. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi Q7 weights approximately 190 kg more than 2009 Mercedes-Benz S.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or rear 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 Mercedes-Benz S (830 Nm @ 1900 RPM) has 330 more torque (in Nm) than 2009 Audi Q7. (500 Nm @ 1750 RPM). This means 2009 Mercedes-Benz S will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi Q7.
Compare all specifications:
| 2009 Audi Q7 | 2009 Mercedes-Benz S | |
| Make | Audi | Mercedes-Benz |
| Model | Q7 | S |
| Year Released | 2009 | 2009 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2967 cc | 5513 cc |
| Engine Cylinders | 6 cylinders | 12 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 3 valves |
| Horse Power | 229 HP | 510 HP |
| Engine RPM | 4000 RPM | 5000 RPM |
| Torque | 500 Nm | 830 Nm |
| Torque RPM | 1750 RPM | 1900 RPM |
| Engine Compression Ratio | 17.0:1 | 9.0:1 |
| Fuel Type | Diesel | Gasoline |
| Top Speed | 205 km/hour | 250 km/hour |
| Acceleration 0-100mph | 9.1 seconds | 4.9 seconds |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 2370 kg | 2180 kg |
| Vehicle Length | 5090 mm | 5210 mm |
| Vehicle Width | 1990 mm | 1480 mm |
| Vehicle Height | 1740 mm | 1880 mm |
| Wheelbase Size | 3010 mm | 3170 mm |
| Fuel Consumption Overall | 10.5 L/100km | 14.3 L/100km |
| Fuel Tank Capacity | 100 L | 90 L |
