2009 Audi A8 vs. 2005 Porsche 911
To start off, 2009 Audi A8 is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Porsche 911. In addition, the cost of maintenance, including insurance, on 2005 Porsche 911 would be higher. At 3,936 cc (8 cylinders), 2009 Audi A8 is equipped with a bigger engine. In terms of performance, 2005 Porsche 911 (445 HP @ 5700 RPM) has 174 more horse power than 2009 Audi A8. (271 HP @ 3750 RPM) In normal driving conditions, 2005 Porsche 911 should accelerate faster than 2009 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A8 weights approximately 350 kg more than 2005 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, 2009 Audi A8 (650 Nm @ 1800 RPM) has 30 more torque (in Nm) than 2005 Porsche 911. (620 Nm @ 3500 RPM). This means 2009 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2005 Porsche 911. 2009 Audi A8 has automatic transmission and 2005 Porsche 911 has manual transmission. 2005 Porsche 911 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Audi A8 will be easier to drive especially in heavy traffic.
Compare all specifications:
2009 Audi A8 | 2005 Porsche 911 | |
Make | Audi | Porsche |
Model | A8 | 911 |
Year Released | 2009 | 2005 |
Body Type | Sedan | Coupe |
Engine Position | Front | Rear |
Engine Size | 3936 cc | 3600 cc |
Engine Cylinders | 8 cylinders | 6 cylinders |
Engine Type | V | boxer |
Valves per Cylinder | 4 valves | 4 valves |
Horse Power | 271 HP | 445 HP |
Engine RPM | 3750 RPM | 5700 RPM |
Torque | 650 Nm | 620 Nm |
Torque RPM | 1800 RPM | 3500 RPM |
Engine Compression Ratio | 18.0:1 | 9.4:1 |
Fuel Type | Diesel | Gasoline - Premium |
Top Speed | 245 km/hour | 307 km/hour |
Acceleration 0-100mph | 6.7 seconds | 4.2 seconds |
Drive Type | 4WD | 4WD |
Transmission Type | Automatic | Manual |
Number of Seats | 5 seats | 4 seats |
Number of Doors | 4 doors | 2 doors |
Vehicle Weight | 1940 kg | 1590 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 | 13.3 L/100km |
Fuel Tank Capacity | 90 L | 64 L |