2005 Audi A8 vs. 2007 Porsche 911
To start off, 2007 Porsche 911 is newer by 2 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 5,998 cc, 2005 Audi A8 is equipped with a bigger engine. In terms of performance, 2007 Porsche 911 (481 HP @ 6000 RPM) has 37 more horse power than 2005 Audi A8. (444 HP @ 6200 RPM) In normal driving conditions, 2007 Porsche 911 should accelerate faster than 2005 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, 2007 Porsche 911 (624 Nm @ 1950 RPM) has 44 more torque (in Nm) than 2005 Audi A8. (580 Nm @ 4000 RPM). This means 2007 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A8. 2005 Audi A8 has automatic transmission and 2007 Porsche 911 has manual transmission. 2007 Porsche 911 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Audi A8 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Audi A8 | 2007 Porsche 911 | |
| Make | Audi | Porsche |
| Model | A8 | 911 |
| Year Released | 2005 | 2007 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 5998 cc | 3605 cc |
| Engine Type | W | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 444 HP | 481 HP |
| Engine RPM | 6200 RPM | 6000 RPM |
| Torque | 580 Nm | 624 Nm |
| Torque RPM | 4000 RPM | 1950 RPM |
| Engine Bore Size | 84 mm | 100 mm |
| Engine Stroke Size | 90.2 mm | 76 mm |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Length | 5070 mm | 4460 mm |
| Vehicle Width | 1900 mm | 1860 mm |
| Vehicle Height | 1450 mm | 1310 mm |
| Wheelbase Size | 3080 mm | 2360 mm |
| Fuel Consumption Overall | 13.8 L/100km | 11.8 L/100km |
| Fuel Tank Capacity | 90 L | 67 L |
