2003 Audi RS6 vs. 2005 Porsche 911
To start off, 2005 Porsche 911 is newer by 2 year(s). Which means there will be less support and parts availability for 2003 Audi RS6. In addition, the cost of maintenance, including insurance, on 2003 Audi RS6 would be higher. At 4,163 cc (8 cylinders), 2003 Audi RS6 is equipped with a bigger engine. In terms of performance, 2005 Porsche 911 (445 HP @ 6000 RPM) has 1 more horse power than 2003 Audi RS6. (444 HP @ 6300 RPM) In normal driving conditions, 2005 Porsche 911 should accelerate faster than 2003 Audi RS6. With that said, vehicle weight also plays an important factor in acceleration. 2003 Audi RS6 weights approximately 320 kg more than 2005 Porsche 911.
Let's talk about torque, 2005 Porsche 911 (620 Nm) has 60 more torque (in Nm) than 2003 Audi RS6. (560 Nm). This means 2005 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 2003 Audi RS6.
Compare all specifications:
| 2003 Audi RS6 | 2005 Porsche 911 | |
| Make | Audi | Porsche |
| Model | RS6 | 911 |
| Year Released | 2003 | 2005 |
| Body Type | Station Wagon | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 4163 cc | 3605 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 444 HP | 445 HP |
| Engine RPM | 6300 RPM | 6000 RPM |
| Torque | 560 Nm | 620 Nm |
| Engine Bore Size | 84.5 mm | 100 mm |
| Engine Stroke Size | 93 mm | 76 mm |
| Engine Compression Ratio | 9.3:1 | 9.4:1 |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1910 kg | 1590 kg |
| Vehicle Length | 4860 mm | 4440 mm |
| Vehicle Width | 1860 mm | 1840 mm |
| Vehicle Height | 1460 mm | 1300 mm |
| Wheelbase Size | 2760 mm | 2360 mm |
| Fuel Consumption | 10.4 L/100km | 10.7 L/100km |
| Fuel Consumption City | 21.8 L/100km | 15.7 L/100km |
| Fuel Consumption Overall | 14.6 L/100km | 13.1 L/100km |
| Fuel Tank Capacity | 82 L | 63 L |
