2005 Audi A8 vs. 2011 Porsche 911
To start off, 2011 Porsche 911 is newer by 6 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 4,178 cc (8 cylinders), 2005 Audi A8 is equipped with a bigger engine. In terms of performance, 2011 Porsche 911 (385 HP @ 6500 RPM) has 50 more horse power than 2005 Audi A8. (335 HP @ 4000 RPM) In normal driving conditions, 2011 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 440 kg more than 2011 Porsche 911.
Let's talk about torque, 2005 Audi A8 (430 Nm) has 10 more torque (in Nm) than 2011 Porsche 911. (420 Nm). This means 2005 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2011 Porsche 911.
Compare all specifications:
| 2005 Audi A8 | 2011 Porsche 911 | |
| Make | Audi | Porsche |
| Model | A8 | 911 |
| Year Released | 2005 | 2011 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Rear |
| Engine Size | 4178 cc | 3800 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 335 HP | 385 HP |
| Engine RPM | 4000 RPM | 6500 RPM |
| Torque | 430 Nm | 420 Nm |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1945 kg | 1505 kg |
| Vehicle Length | 5060 mm | 4460 mm |
| Vehicle Width | 1900 mm | 1852 mm |
| Vehicle Height | 1450 mm | 1300 mm |
| Wheelbase Size | 2950 mm | 2350 mm |
| Fuel Consumption Highway | 9.8 L/100km | 9.4 L/100km |
| Fuel Consumption City | 13.1 L/100km | 13.8 L/100km |
| Fuel Tank Capacity | 90 L | 67 L |
