2005 Audi A8 vs. 2013 Porsche 911
To start off, 2013 Porsche 911 is newer by 8 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, 2013 Porsche 911 (395 HP @ 7400 RPM) has 60 more horse power than 2005 Audi A8. (335 HP @ 4000 RPM) In normal driving conditions, 2013 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 480 kg more than 2013 Porsche 911.
Let's talk about torque, 2013 Porsche 911 (441 Nm) has 11 more torque (in Nm) than 2005 Audi A8. (430 Nm). This means 2013 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A8.
Compare all specifications:
| 2005 Audi A8 | 2013 Porsche 911 | |
| Make | Audi | Porsche |
| Model | A8 | 911 |
| Year Released | 2005 | 2013 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| 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 | 395 HP |
| Engine RPM | 4000 RPM | 7400 RPM |
| Torque | 430 Nm | 441 Nm |
| Engine Bore Size | 85 mm | 102 mm |
| Engine Stroke Size | 93 mm | 77 mm |
| Engine Compression Ratio | 11.0:1 | 12.5 : 1 |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1945 kg | 1465 kg |
| Vehicle Length | 5060 mm | 4491 mm |
| Vehicle Width | 1900 mm | 1978 mm |
| Vehicle Height | 1450 mm | 1292 mm |
| Wheelbase Size | 2950 mm | 2450 mm |
| Fuel Consumption Highway | 9.8 L/100km | 6.5 L/100km |
| Fuel Consumption City | 13.1 L/100km | 12.7 L/100km |
