2005 Audi A4 vs. 2007 Porsche 911
To start off, 2007 Porsche 911 is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Audi A4. In addition, the cost of maintenance, including insurance, on 2005 Audi A4 would be higher. At 3,594 cc (6 cylinders), 2007 Porsche 911 is equipped with a bigger engine. In terms of performance, 2007 Porsche 911 (321 HP @ 6800 RPM) has 134 more horse power than 2005 Audi A4. (187 HP @ 5700 RPM) In normal driving conditions, 2007 Porsche 911 should accelerate faster than 2005 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2007 Porsche 911 weights approximately 30 kg more than 2005 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Porsche 911 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2007 Porsche 911. However, in wet, icy, snow, or gravel driving conditions, 2005 Audi A4, being front wheel drive (FWD), will offer much better control with better grip. 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, 2007 Porsche 911 (370 Nm @ 4250 RPM) has 130 more torque (in Nm) than 2005 Audi A4. (240 Nm @ 1980 RPM). This means 2007 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A4.
Compare all specifications:
| 2005 Audi A4 | 2007 Porsche 911 | |
| Make | Audi | Porsche |
| Model | A4 | 911 |
| Year Released | 2005 | 2007 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Rear |
| Engine Size | 1781 cc | 3594 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 187 HP | 321 HP |
| Engine RPM | 5700 RPM | 6800 RPM |
| Torque | 240 Nm | 370 Nm |
| Torque RPM | 1980 RPM | 4250 RPM |
| Engine Compression Ratio | 9.3:1 | 11.3:1 |
| Top Speed | 231 km/hour | 285 km/hour |
| Acceleration 0-100mph | 8.2 seconds | 5.2 seconds |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1395 kg | 1425 kg |
| Vehicle Length | 4550 mm | 4440 mm |
| Vehicle Width | 1780 mm | 1780 mm |
| Vehicle Height | 1430 mm | 1310 mm |
| Wheelbase Size | 2760 mm | 2360 mm |
| Fuel Consumption Overall | 8.6 L/100km | 11 L/100km |
| Fuel Tank Capacity | 70 L | 64 L |
