2009 Audi A8 vs. 2012 Porsche 911
To start off, 2012 Porsche 911 is newer by 3 year(s). Which means there will be less support and parts availability for 2009 Audi A8. In addition, the cost of maintenance, including insurance, on 2009 Audi A8 would be higher. At 5,204 cc (10 cylinders), 2009 Audi A8 is equipped with a bigger engine. In terms of performance, 2009 Audi A8 (444 HP @ 7000 RPM) has 59 more horse power than 2012 Porsche 911. (385 HP @ 6500 RPM). In normal driving conditions, 2009 Audi A8 should accelerate faster than 2012 Porsche 911. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A8 weights approximately 435 kg more than 2012 Porsche 911. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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 (540 Nm @ 3500 RPM) has 120 more torque (in Nm) than 2012 Porsche 911. (420 Nm @ 4400 RPM). This means 2009 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2012 Porsche 911. 2009 Audi A8 has automatic transmission and 2012 Porsche 911 has manual transmission. 2012 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 | 2012 Porsche 911 | |
| Make | Audi | Porsche |
| Model | A8 | 911 |
| Year Released | 2009 | 2012 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 5204 cc | 3800 cc |
| Engine Cylinders | 10 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 444 HP | 385 HP |
| Engine RPM | 7000 RPM | 6500 RPM |
| Torque | 540 Nm | 420 Nm |
| Torque RPM | 3500 RPM | 4400 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | 4WD | AWD |
| Transmission Type | Automatic | 6-speed manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1940 kg | 1505 kg |
| Vehicle Length | 5070 mm | 4465 mm |
| Vehicle Width | 1900 mm | 1808 mm |
| Vehicle Height | 1430 mm | 1300 mm |
| Wheelbase Size | 2950 mm | 2350 mm |
| Fuel Consumption Highway | 12.4 L/100km | 9.4 L/100km |
| Fuel Consumption City | 18.2 L/100km | 13.8 L/100km |
| Fuel Tank Capacity | 90 L | 67 L |
