2009 Audi A5 vs. 2008 Porsche 911
To start off, 2009 Audi A5 is newer by 1 year(s). Which means there will be less support and parts availability for 2008 Porsche 911. In addition, the cost of maintenance, including insurance, on 2008 Porsche 911 would be higher. At 3,823 cc (6 cylinders), 2008 Porsche 911 is equipped with a bigger engine. In terms of performance, 2008 Porsche 911 (350 HP @ 6600 RPM) has 113 more horse power than 2009 Audi A5. (237 HP @ 4000 RPM) In normal driving conditions, 2008 Porsche 911 should accelerate faster than 2009 Audi A5. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A5 weights approximately 105 kg more than 2008 Porsche 911.
Because 2009 Audi A5 is four wheel drive (4WD), it will have significant more traction and grip than 2008 Porsche 911. In wet, icy, snow, or gravel driving conditions, 2009 Audi A5 will offer significantly more control. 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 A5 (500 Nm @ 1500 RPM) has 100 more torque (in Nm) than 2008 Porsche 911. (400 Nm @ 4600 RPM). This means 2009 Audi A5 will have an easier job in driving up hills or pulling heavy equipment than 2008 Porsche 911.
Compare all specifications:
| 2009 Audi A5 | 2008 Porsche 911 | |
| Make | Audi | Porsche |
| Model | A5 | 911 |
| Year Released | 2009 | 2008 |
| Body Type | Coupe | Convertible |
| Engine Position | Front | Rear |
| Engine Size | 2965 cc | 3823 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 237 HP | 350 HP |
| Engine RPM | 4000 RPM | 6600 RPM |
| Torque | 500 Nm | 400 Nm |
| Torque RPM | 1500 RPM | 4600 RPM |
| Engine Bore Size | 83 mm | 99 mm |
| Engine Stroke Size | 91.4 mm | 82.8 mm |
| Engine Compression Ratio | 16.8:1 | 11.8:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 250 km/hour | 293 km/hour |
| Acceleration 0-100mph | 5.9 seconds | 4.9 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1610 kg | 1505 kg |
| Vehicle Length | 4630 mm | 4430 mm |
| Vehicle Width | 1860 mm | 1810 mm |
| Vehicle Height | 1380 mm | 1310 mm |
| Wheelbase Size | 2760 mm | 2360 mm |
| Fuel Consumption Overall | 6.6 L/100km | 11.6 L/100km |
| Fuel Tank Capacity | 64 L | 64 L |
