2005 Audi S8 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 S8. In addition, the cost of maintenance, including insurance, on 2005 Audi S8 would be higher. At 4,172 cc (8 cylinders), 2005 Audi S8 is equipped with a bigger engine. In terms of performance, 2007 Porsche 911 (350 HP @ 6600 RPM) has 103 more horse power than 2005 Audi S8. (247 HP @ 4000 RPM) In normal driving conditions, 2007 Porsche 911 should accelerate faster than 2005 Audi S8. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi S8 weights approximately 235 kg more than 2007 Porsche 911.
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 S8 (450 Nm @ 3400 RPM) has 50 more torque (in Nm) than 2007 Porsche 911. (400 Nm @ 4600 RPM). This means 2005 Audi S8 will have an easier job in driving up hills or pulling heavy equipment than 2007 Porsche 911. 2005 Audi S8 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 S8 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Audi S8 | 2007 Porsche 911 | |
| Make | Audi | Porsche |
| Model | S8 | 911 |
| Year Released | 2005 | 2007 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 4172 cc | 3824 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 247 HP | 350 HP |
| Engine RPM | 4000 RPM | 6600 RPM |
| Torque | 450 Nm | 400 Nm |
| Torque RPM | 3400 RPM | 4600 RPM |
| Drive Type | AWD | 4WD |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1770 kg | 1535 kg |
| Wheelbase Size | 2290 mm | 2360 mm |
| Fuel Tank Capacity | 90 L | 67 L |
