2009 Audi A4 vs. 2011 Porsche 911
To start off, 2011 Porsche 911 is newer by 2 year(s). Which means there will be less support and parts availability for 2009 Audi A4. In addition, the cost of maintenance, including insurance, on 2009 Audi A4 would be higher. At 3,800 cc (6 cylinders), 2011 Porsche 911 is equipped with a bigger engine. In terms of performance, 2011 Porsche 911 (500 HP @ 6000 RPM) has 248 more horse power than 2009 Audi A4. (252 HP @ 5100 RPM) In normal driving conditions, 2011 Porsche 911 should accelerate faster than 2009 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2011 Porsche 911 weights approximately 715 kg more than 2009 Audi A4. 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, 2011 Porsche 911 (650 Nm @ 1950 RPM) has 320 more torque (in Nm) than 2009 Audi A4. (330 Nm @ 3250 RPM). This means 2011 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A4.
Compare all specifications:
| 2009 Audi A4 | 2011 Porsche 911 | |
| Make | Audi | Porsche |
| Model | A4 | 911 |
| Year Released | 2009 | 2011 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 3122 cc | 3800 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 252 HP | 500 HP |
| Engine RPM | 5100 RPM | 6000 RPM |
| Torque | 330 Nm | 650 Nm |
| Torque RPM | 3250 RPM | 1950 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | 4WD | AWD |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 930 kg | 1645 kg |
| Vehicle Length | 4580 mm | 4478 mm |
| Vehicle Width | 1400 mm | 1852 mm |
| Vehicle Height | 1780 mm | 1300 mm |
| Wheelbase Size | 2660 mm | 2350 mm |
| Fuel Tank Capacity | 70 L | 67 L |
