2008 Audi S5 vs. 2009 Porsche 911
To start off, 2009 Porsche 911 is newer by 1 year(s). Which means there will be less support and parts availability for 2008 Audi S5. In addition, the cost of maintenance, including insurance, on 2008 Audi S5 would be higher. At 4,163 cc (8 cylinders), 2008 Audi S5 is equipped with a bigger engine. In terms of performance, 2009 Porsche 911 (473 HP @ 6000 RPM) has 119 more horse power than 2008 Audi S5. (354 HP @ 6800 RPM) In normal driving conditions, 2009 Porsche 911 should accelerate faster than 2008 Audi S5. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi S5 weights approximately 235 kg more than 2009 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 Porsche 911 (620 Nm @ 2700 RPM) has 179 more torque (in Nm) than 2008 Audi S5. (441 Nm @ 3500 RPM). This means 2009 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 2008 Audi S5.
Compare all specifications:
| 2008 Audi S5 | 2009 Porsche 911 | |
| Make | Audi | Porsche |
| Model | S5 | 911 |
| Year Released | 2008 | 2009 |
| Body Type | Coupe | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 4163 cc | 3599 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Horse Power | 354 HP | 473 HP |
| Engine RPM | 6800 RPM | 6000 RPM |
| Torque | 441 Nm | 620 Nm |
| Torque RPM | 3500 RPM | 2700 RPM |
| Engine Bore Size | 84.5 mm | 100 mm |
| Engine Stroke Size | 92.8 mm | 76.4 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 249 km/hour | 310 km/hour |
| Drive Type | 4WD | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1765 kg | 1530 kg |
| Vehicle Length | 4640 mm | 4440 mm |
| Vehicle Width | 1990 mm | 1300 mm |
| Vehicle Height | 1380 mm | 1840 mm |
| Wheelbase Size | 2760 mm | 2360 mm |
| Fuel Consumption Overall | 7.8 L/100km | 12.8 L/100km |
| Fuel Tank Capacity | 63 L | 64 L |
