2009 Audi A8 vs. 2009 Porsche 911
To start off, both 2009 Audi A8 and 2009 Porsche 911 were released in the same year (2009). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 3,823 cc (6 cylinders), 2009 Porsche 911 is equipped with a bigger engine. In terms of performance, 2009 Porsche 911 (350 HP @ 6600 RPM) has 120 more horse power than 2009 Audi A8. (230 HP @ 4000 RPM) In normal driving conditions, 2009 Porsche 911 should accelerate faster than 2009 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2009 Porsche 911 weights approximately 605 kg more than 2009 Audi A8. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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 (450 Nm @ 1400 RPM) has 50 more torque (in Nm) than 2009 Porsche 911. (400 Nm @ 4600 RPM). This means 2009 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2009 Porsche 911.
Compare all specifications:
| 2009 Audi A8 | 2009 Porsche 911 | |
| Make | Audi | Porsche |
| Model | A8 | 911 |
| Year Released | 2009 | 2009 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 2965 cc | 3823 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 230 HP | 350 HP |
| Engine RPM | 4000 RPM | 6600 RPM |
| Torque | 450 Nm | 400 Nm |
| Torque RPM | 1400 RPM | 4600 RPM |
| Engine Bore Size | 83 mm | 96 mm |
| Engine Stroke Size | 91.4 mm | 82.8 mm |
| Fuel Type | Diesel | Gasoline |
| Top Speed | 243 km/hour | 280 km/hour |
| Acceleration 0-100mph | 7.9 seconds | 5.4 seconds |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 930 kg | 1535 kg |
| Vehicle Length | 5190 mm | 4430 mm |
| Vehicle Width | 1900 mm | 1310 mm |
| Vehicle Height | 1450 mm | 1860 mm |
| Wheelbase Size | 3080 mm | 2360 mm |
| Fuel Consumption Overall | 8.4 L/100km | 11.9 L/100km |
| Fuel Tank Capacity | 90 L | 67 L |
