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 (415 HP @ 6000 RPM) has 255 more horse power than 2005 Audi A4. (160 HP @ 1950 RPM) In normal driving conditions, 2004 Porsche 911 should accelerate faster than 2005 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2004 Porsche 911 weights approximately 305 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 2004 Porsche 911 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Audi A4. In wet, icy, snow, or gravel driving conditions, 2004 Porsche 911 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 (563 Nm @ 2700 RPM) has 338 more torque (in Nm) than 2005 Audi A4. (225 Nm @ 1950 RPM). 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 | Station Wagon | Convertible |
| Engine Position | Front | Rear |
| Engine Size | 1780 cc | 3589 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 160 HP | 415 HP |
| Engine RPM | 1950 RPM | 6000 RPM |
| Torque | 225 Nm | 563 Nm |
| Torque RPM | 1950 RPM | 2700 RPM |
| Engine Bore Size | 81 mm | 100 mm |
| Engine Stroke Size | 86.4 mm | 76 mm |
| Engine Compression Ratio | 9.3:1 | 9.4:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 225 km/hour | 305 km/hour |
| Acceleration 0-100mph | 8.8 seconds | 4.6 seconds |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1430 kg | 1735 kg |
| Vehicle Length | 4550 mm | 4440 mm |
| Vehicle Width | 1780 mm | 1840 mm |
| Vehicle Height | 1430 mm | 1300 mm |
| Wheelbase Size | 2770 mm | 2360 mm |
| Fuel Consumption Overall | 8.6 L/100km | 12.8 L/100km |
| Fuel Tank Capacity | 70 L | 64 L |
