2004 Audi RS6 vs. 2005 BMW M3
To start off, 2005 BMW M3 is newer by 1 year(s). Which means there will be less support and parts availability for 2004 Audi RS6. In addition, the cost of maintenance, including insurance, on 2004 Audi RS6 would be higher. At 4,163 cc (8 cylinders), 2004 Audi RS6 is equipped with a bigger engine. In terms of performance, 2004 Audi RS6 (445 HP @ 6300 RPM) has 125 more horse power than 2005 BMW M3. (320 HP @ 7400 RPM). In normal driving conditions, 2004 Audi RS6 should accelerate faster than 2005 BMW M3. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi RS6 weights approximately 150 kg more than 2005 BMW M3. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 Audi RS6 is four wheel drive (4WD), it will have significant more traction and grip than 2005 BMW M3. In wet, icy, snow, or gravel driving conditions, 2004 Audi RS6 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 RS6 (560 Nm) has 223 more torque (in Nm) than 2005 BMW M3. (337 Nm). This means 2004 Audi RS6 will have an easier job in driving up hills or pulling heavy equipment than 2005 BMW M3.
Compare all specifications:
| 2004 Audi RS6 | 2005 BMW M3 | |
| Make | Audi | BMW |
| Model | RS6 | M3 |
| Year Released | 2004 | 2005 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 3244 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 445 HP | 320 HP |
| Engine RPM | 6300 RPM | 7400 RPM |
| Torque | 560 Nm | 337 Nm |
| Engine Bore Size | 84.5 mm | 87 mm |
| Engine Stroke Size | 93 mm | 91 mm |
| Engine Compression Ratio | 9.0:1 | 11.5:1 |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1840 kg | 1690 kg |
| Vehicle Length | 4800 mm | 4500 mm |
| Vehicle Width | 1820 mm | 1790 mm |
| Vehicle Height | 1460 mm | 1380 mm |
| Wheelbase Size | 2760 mm | 2740 mm |
| Fuel Tank Capacity | 70 L | 63 L |
