2009 Audi A8 vs. 2007 Porsche Cayenne
To start off, 2009 Audi A8 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Porsche Cayenne. In addition, the cost of maintenance, including insurance, on 2007 Porsche Cayenne would be higher. At 5,204 cc (10 cylinders), 2009 Audi A8 is equipped with a bigger engine. In terms of performance, 2009 Audi A8 (444 HP @ 7000 RPM) has 196 more horse power than 2007 Porsche Cayenne. (248 HP @ 6000 RPM). In normal driving conditions, 2009 Audi A8 should accelerate faster than 2007 Porsche Cayenne. With that said, vehicle weight also plays an important factor in acceleration. 2007 Porsche Cayenne weights approximately 220 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 A8 (540 Nm @ 3500 RPM) has 230 more torque (in Nm) than 2007 Porsche Cayenne. (310 Nm @ 2500 RPM). This means 2009 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2007 Porsche Cayenne.
Compare all specifications:
| 2009 Audi A8 | 2007 Porsche Cayenne | |
| Make | Audi | Porsche |
| Model | A8 | Cayenne |
| Year Released | 2009 | 2007 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 5204 cc | 3189 cc |
| Engine Cylinders | 10 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 444 HP | 248 HP |
| Engine RPM | 7000 RPM | 6000 RPM |
| Torque | 540 Nm | 310 Nm |
| Torque RPM | 3500 RPM | 2500 RPM |
| Engine Bore Size | 84.5 mm | 84 mm |
| Engine Stroke Size | 92.8 mm | 95.9 mm |
| Engine Compression Ratio | 12.5:1 | 11.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 250 km/hour | 214 km/hour |
| Acceleration 0-100mph | 5.1 seconds | 9.1 seconds |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1940 kg | 2160 kg |
| Vehicle Length | 5070 mm | 4790 mm |
| Vehicle Width | 1900 mm | 1930 mm |
| Vehicle Height | 1430 mm | 1710 mm |
| Wheelbase Size | 2950 mm | 2860 mm |
| Fuel Consumption Overall | 15.8 L/100km | 13.2 L/100km |
| Fuel Tank Capacity | 90 L | 100 L |
