2009 Audi A4 vs. 2007 Porsche 911
To start off, 2009 Audi A4 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Porsche 911. In addition, the cost of maintenance, including insurance, on 2007 Porsche 911 would be higher. At 3,600 cc (6 cylinders), 2007 Porsche 911 is equipped with a bigger engine. In terms of performance, 2007 Porsche 911 (473 HP @ 6000 RPM) has 243 more horse power than 2009 Audi A4. (230 HP @ 4000 RPM) In normal driving conditions, 2007 Porsche 911 should accelerate faster than 2009 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A4 weights approximately 204 kg more than 2007 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, 2007 Porsche 911 (620 Nm @ 1950 RPM) has 170 more torque (in Nm) than 2009 Audi A4. (450 Nm @ 1400 RPM). This means 2007 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 | 2007 Porsche 911 | |
| Make | Audi | Porsche |
| Model | A4 | 911 |
| Year Released | 2009 | 2007 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 2967 cc | 3600 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 230 HP | 473 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 450 Nm | 620 Nm |
| Torque RPM | 1400 RPM | 1950 RPM |
| Engine Compression Ratio | 17.0:1 | 10.1:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 242 km/hour | 310 km/hour |
| Acceleration 0-100mph | 7.3 seconds | 3.9 seconds |
| Drive Type | 4WD | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1794 kg | 1590 kg |
| Vehicle Length | 4580 mm | 4440 mm |
| Vehicle Width | 1780 mm | 1860 mm |
| Vehicle Height | 1400 mm | 1310 mm |
| Wheelbase Size | 2660 mm | 2360 mm |
| Fuel Consumption Overall | 8 L/100km | 12.8 L/100km |
| Fuel Tank Capacity | 63 L | 80 L |
