2005 Audi A4 vs. 2005 Porsche 911
To start off, both 2005 Audi A4 and 2005 Porsche 911 were released in the same year (2005). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 3,822 cc (6 cylinders), 2005 Porsche 911 is equipped with a bigger engine. In terms of performance, 2005 Porsche 911 (350 HP @ 6600 RPM) has 163 more horse power than 2005 Audi A4. (187 HP @ 5700 RPM) In normal driving conditions, 2005 Porsche 911 should accelerate faster than 2005 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A4 weights approximately 25 kg more than 2005 Porsche 911.
Because 2005 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Porsche 911. In wet, icy, snow, or gravel driving conditions, 2005 Audi A4 will offer significantly more control. 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, 2005 Porsche 911 (408 Nm @ 4600 RPM) has 168 more torque (in Nm) than 2005 Audi A4. (240 Nm @ 1950 RPM). This means 2005 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 | 2005 Porsche 911 | |
| Make | Audi | Porsche |
| Model | A4 | 911 |
| Year Released | 2005 | 2005 |
| Body Type | Station Wagon | Convertible |
| Engine Position | Front | Rear |
| Engine Size | 1781 cc | 3822 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 187 HP | 350 HP |
| Engine RPM | 5700 RPM | 6600 RPM |
| Torque | 240 Nm | 408 Nm |
| Torque RPM | 1950 RPM | 4600 RPM |
| Engine Bore Size | 81 mm | 99 mm |
| Engine Stroke Size | 86.4 mm | 82.8 mm |
| Engine Compression Ratio | 9.0:1 | 11.8:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 230 km/hour | 293 km/hour |
| Acceleration 0-100mph | 8.5 seconds | 4.9 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1530 kg | 1505 kg |
| Vehicle Length | 4550 mm | 4470 mm |
| Vehicle Width | 1780 mm | 1810 mm |
| Vehicle Height | 1430 mm | 1310 mm |
| Wheelbase Size | 2660 mm | 2360 mm |
| Fuel Consumption Overall | 9.4 L/100km | 11.6 L/100km |
| Fuel Tank Capacity | 66 L | 64 L |
