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 3,822 cc (6 cylinders), 2007 Porsche 911 is equipped with a bigger engine. In terms of performance, 2007 Porsche 911 (350 HP @ 6600 RPM) has 189 more horse power than 2009 Audi A4. (161 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 225 kg more than 2007 Porsche 911.
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, 2009 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 (400 Nm @ 4600 RPM) has 50 more torque (in Nm) than 2009 Audi A4. (350 Nm @ 1500 RPM). This means 2007 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A4. 2007 Porsche 911 has automatic transmission and 2009 Audi A4 has manual transmission. 2009 Audi A4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Porsche 911 will be easier to drive especially in heavy traffic.
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 | 2495 cc | 3822 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 161 HP | 350 HP |
| Engine RPM | 4000 RPM | 6600 RPM |
| Torque | 350 Nm | 400 Nm |
| Torque RPM | 1500 RPM | 4600 RPM |
| Engine Bore Size | 78.3 mm | 99 mm |
| Engine Stroke Size | 86.4 mm | 82.8 mm |
| Engine Compression Ratio | 18.0:1 | 11.8:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 225 km/hour | 293 km/hour |
| Acceleration 0-100mph | 9.7 seconds | 4.8 seconds |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1720 kg | 1495 kg |
| Vehicle Length | 4580 mm | 4430 mm |
| Vehicle Width | 1780 mm | 1810 mm |
| Vehicle Height | 1400 mm | 1310 mm |
| Wheelbase Size | 2660 mm | 2360 mm |
| Fuel Consumption Overall | 7.3 L/100km | 11.6 L/100km |
| Fuel Tank Capacity | 70 L | 64 L |
