2005 Audi A4 vs. 2004 Porsche 911
To start off, 2005 Audi A4 is newer by 1 year(s). Which means there will be less support and parts availability for 2004 Porsche 911. In addition, the cost of maintenance, including insurance, on 2004 Porsche 911 would be higher. At 3,589 cc (6 cylinders), 2004 Porsche 911 is equipped with a bigger engine. In terms of performance, 2004 Porsche 911 (381 HP @ 8000 RPM) has 134 more horse power than 2005 Audi A4. (247 HP @ 6300 RPM) In normal driving conditions, 2004 Porsche 911 should accelerate faster than 2005 Audi A4.
Because 2005 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 2004 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, 2004 Porsche 911 (385 Nm) has 65 more torque (in Nm) than 2005 Audi A4. (320 Nm). This means 2004 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 | 2004 Porsche 911 | |
| Make | Audi | Porsche |
| Model | A4 | 911 |
| Year Released | 2005 | 2004 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 2983 cc | 3589 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 247 HP | 381 HP |
| Engine RPM | 6300 RPM | 8000 RPM |
| Torque | 320 Nm | 385 Nm |
| Engine Bore Size | 84.5 mm | 100 mm |
| Engine Stroke Size | 92.8 mm | 92 mm |
| Engine Compression Ratio | 13.0:1 | 11.7:1 |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Length | 4590 mm | 4440 mm |
| Vehicle Width | 1780 mm | 1780 mm |
| Vehicle Height | 1430 mm | 1280 mm |
| Wheelbase Size | 2660 mm | 2360 mm |
