2004 Audi RS4 vs. 2005 Porsche 911
To start off, 2005 Porsche 911 is newer by 1 year(s). Which means there will be less support and parts availability for 2004 Audi RS4. In addition, the cost of maintenance, including insurance, on 2004 Audi RS4 would be higher. At 3,818 cc (6 cylinders), 2005 Porsche 911 is equipped with a bigger engine. In terms of performance, 2004 Audi RS4 (376 HP @ 6300 RPM) has 21 more horse power than 2005 Porsche 911. (355 HP @ 6800 RPM). In normal driving conditions, 2004 Audi RS4 should accelerate faster than 2005 Porsche 911. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi RS4 weights approximately 85 kg more than 2005 Porsche 911. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 Audi RS4 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, 2004 Audi RS4 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 Audi RS4 (450 Nm @ 2500 RPM) has 65 more torque (in Nm) than 2005 Porsche 911. (385 Nm @ 4600 RPM). This means 2004 Audi RS4 will have an easier job in driving up hills or pulling heavy equipment than 2005 Porsche 911.
Compare all specifications:
| 2004 Audi RS4 | 2005 Porsche 911 | |
| Make | Audi | Porsche |
| Model | RS4 | 911 |
| Year Released | 2004 | 2005 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 2671 cc | 3818 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 376 HP | 355 HP |
| Engine RPM | 6300 RPM | 6800 RPM |
| Torque | 450 Nm | 385 Nm |
| Torque RPM | 2500 RPM | 4600 RPM |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1585 kg | 1500 kg |
| Vehicle Length | 4480 mm | 4430 mm |
| Vehicle Width | 1740 mm | 1810 mm |
| Vehicle Height | 1450 mm | 1310 mm |
| Wheelbase Size | 2610 mm | 2360 mm |
| Fuel Tank Capacity | 55 L | 64 L |
