2009 Audi Q7 vs. 2009 Audi A8
To start off, both 2009 Audi Q7 and 2009 Audi A8 were released in the same year (2009). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 4,134 cc (8 cylinders), 2009 Audi A8 is equipped with a bigger engine. In terms of performance, both vehicles can yield 322 horse power. So under normal driving conditions, the acceleration of both vehicles should be relatively similar. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi Q7 weights approximately 475 kg more than 2009 Audi A8.
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 Audi Q7 (760 Nm @ 1800 RPM) has 110 more torque (in Nm) than 2009 Audi A8. (650 Nm @ 1600 RPM). This means 2009 Audi Q7 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A8.
Compare all specifications:
| 2009 Audi Q7 | 2009 Audi A8 | |
| Make | Audi | Audi |
| Model | Q7 | A8 |
| Year Released | 2009 | 2009 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4132 cc | 4134 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 322 HP | 322 HP |
| Engine RPM | 3750 RPM | 3750 RPM |
| Torque | 760 Nm | 650 Nm |
| Torque RPM | 1800 RPM | 1600 RPM |
| Engine Bore Size | 83 mm | 83 mm |
| Engine Stroke Size | 95.5 mm | 95.5 mm |
| Engine Compression Ratio | 16.5:1 | 16.5:1 |
| Fuel Type | Diesel | Diesel |
| Top Speed | 236 km/hour | 250 km/hour |
| Acceleration 0-100mph | 6.4 seconds | 5.9 seconds |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 2420 kg | 1945 kg |
| Vehicle Length | 5090 mm | 5070 mm |
| Vehicle Width | 1990 mm | 1900 mm |
| Vehicle Height | 1780 mm | 1450 mm |
| Wheelbase Size | 3010 mm | 2950 mm |
| Fuel Consumption Overall | 11.1 L/100km | 9.4 L/100km |
| Fuel Tank Capacity | 100 L | 90 L |
