2005 Audi A8 vs. 2008 Porsche Cayenne
To start off, 2008 Porsche Cayenne is newer by 3 year(s). Which means there will be less support and parts availability for 2005 Audi A8. In addition, the cost of maintenance, including insurance, on 2005 Audi A8 would be higher. At 4,511 cc (8 cylinders), 2008 Porsche Cayenne is equipped with a bigger engine. In terms of performance, 2008 Porsche Cayenne (350 HP @ 6000 RPM) has 132 more horse power than 2005 Audi A8. (218 HP @ 6300 RPM) In normal driving conditions, 2008 Porsche Cayenne should accelerate faster than 2005 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2008 Porsche Cayenne weights approximately 1420 kg more than 2005 Audi A8. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 Porsche Cayenne is four wheel drive (4WD), it will have significant more traction and grip than 2005 Audi A8. In wet, icy, snow, or gravel driving conditions, 2008 Porsche Cayenne 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, 2008 Porsche Cayenne (420 Nm @ 2500 RPM) has 120 more torque (in Nm) than 2005 Audi A8. (300 Nm @ 8200 RPM). This means 2008 Porsche Cayenne will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A8.
Compare all specifications:
| 2005 Audi A8 | 2008 Porsche Cayenne | |
| Make | Audi | Porsche |
| Model | A8 | Cayenne |
| Year Released | 2005 | 2008 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 2976 cc | 4511 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 218 HP | 350 HP |
| Engine RPM | 6300 RPM | 6000 RPM |
| Torque | 300 Nm | 420 Nm |
| Torque RPM | 8200 RPM | 2500 RPM |
| Engine Bore Size | 82.5 mm | 93 mm |
| Engine Stroke Size | 92.8 mm | 83 mm |
| Engine Compression Ratio | 11.0:1 | 11.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 242 km/hour | 242 km/hour |
| Acceleration 0-100mph | 8.3 seconds | 6.8 seconds |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 900 kg | 2320 kg |
| Vehicle Length | 5190 mm | 4790 mm |
| Vehicle Width | 1900 mm | 1930 mm |
| Vehicle Height | 1460 mm | 1710 mm |
| Wheelbase Size | 3080 mm | 2860 mm |
| Fuel Consumption Overall | 9.6 L/100km | 16 L/100km |
| Fuel Tank Capacity | 90 L | 100 L |
