2007 Audi S4 vs. 2009 Porsche 911
To start off, 2009 Porsche 911 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Audi S4. In addition, the cost of maintenance, including insurance, on 2007 Audi S4 would be higher. At 4,163 cc (8 cylinders), 2007 Audi S4 is equipped with a bigger engine. In terms of performance, 2009 Porsche 911 (409 HP @ 7600 RPM) has 68 more horse power than 2007 Audi S4. (341 HP @ 7000 RPM) In normal driving conditions, 2009 Porsche 911 should accelerate faster than 2007 Audi S4.
Let's talk about torque, 2007 Audi S4 (410 Nm @ 3500 RPM) has 5 more torque (in Nm) than 2009 Porsche 911. (405 Nm @ 5500 RPM). This means 2007 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 2009 Porsche 911.
Compare all specifications:
| 2007 Audi S4 | 2009 Porsche 911 | |
| Make | Audi | Porsche |
| Model | S4 | 911 |
| Year Released | 2007 | 2009 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 4163 cc | 3599 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Horse Power | 341 HP | 409 HP |
| Engine RPM | 7000 RPM | 7600 RPM |
| Torque | 410 Nm | 405 Nm |
| Torque RPM | 3500 RPM | 5500 RPM |
| Engine Bore Size | 84.6 mm | 100 mm |
| Engine Stroke Size | 92.7 mm | 76.4 mm |
| Engine Compression Ratio | 11.0:1 | 11.7:1 |
| Fuel Type | Gasoline | Gasoline |
| Top Speed | 249 km/hour | 310 km/hour |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Length | 4590 mm | 4450 mm |
| Vehicle Width | 1730 mm | 1290 mm |
| Vehicle Height | 1430 mm | 1810 mm |
| Wheelbase Size | 2650 mm | 2360 mm |
| Fuel Tank Capacity | 63 L | 67 L |
