2005 Audi A8 vs. 2004 Porsche 911
To start off, 2005 Audi A8 is newer by 1 year(s). Which means there will be less support and parts availability for 2004 Porsche 911. In addition, the cost of maintenance, including insurance, on 2004 Porsche 911 would be higher. At 3,934 cc (8 cylinders), 2005 Audi A8 is equipped with a bigger engine. In terms of performance, 2004 Porsche 911 (315 HP @ 6800 RPM) has 39 more horse power than 2005 Audi A8. (276 HP @ 3750 RPM) In normal driving conditions, 2004 Porsche 911 should accelerate faster than 2005 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A8 weights approximately 515 kg more than 2004 Porsche 911.
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, 2005 Audi A8 (650 Nm) has 280 more torque (in Nm) than 2004 Porsche 911. (370 Nm). This means 2005 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2004 Porsche 911.
Compare all specifications:
| 2005 Audi A8 | 2004 Porsche 911 | |
| Make | Audi | Porsche |
| Model | A8 | 911 |
| Year Released | 2005 | 2004 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 3934 cc | 3589 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 276 HP | 315 HP |
| Engine RPM | 3750 RPM | 6800 RPM |
| Torque | 650 Nm | 370 Nm |
| Engine Compression Ratio | 18.0:1 | 11.3:1 |
| Drive Type | 4WD | 4WD |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1940 kg | 1425 kg |
| Vehicle Length | 5060 mm | 4440 mm |
| Vehicle Width | 1900 mm | 1840 mm |
| Vehicle Height | 1450 mm | 1300 mm |
| Wheelbase Size | 2950 mm | 2360 mm |
| Fuel Consumption Overall | 9.7 L/100km | 12.4 L/100km |
| Fuel Tank Capacity | 90 L | 64 L |
