2006 Audi A8 vs. 2005 BMW M6
To start off, 2006 Audi A8 is newer by 1 year(s). Which means there will be less support and parts availability for 2005 BMW M6. In addition, the cost of maintenance, including insurance, on 2005 BMW M6 would be higher. At 5,997 cc, 2006 Audi A8 is equipped with a bigger engine. In terms of performance, 2005 BMW M6 (500 HP @ 7750 RPM) has 50 more horse power than 2006 Audi A8. (450 HP @ 6200 RPM) In normal driving conditions, 2005 BMW M6 should accelerate faster than 2006 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi A8 weights approximately 360 kg more than 2005 BMW M6.
Because 2006 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2005 BMW M6. In wet, icy, snow, or gravel driving conditions, 2006 Audi A8 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, 2006 Audi A8 (580 Nm @ 4000 RPM) has 80 more torque (in Nm) than 2005 BMW M6. (500 Nm @ 6100 RPM). This means 2006 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2005 BMW M6.
Compare all specifications:
| 2006 Audi A8 | 2005 BMW M6 | |
| Make | Audi | BMW |
| Model | A8 | M6 |
| Year Released | 2006 | 2005 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 5997 cc | 4998 cc |
| Engine Type | W | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 450 HP | 500 HP |
| Engine RPM | 6200 RPM | 7750 RPM |
| Torque | 580 Nm | 500 Nm |
| Torque RPM | 4000 RPM | 6100 RPM |
| Engine Bore Size | 84 mm | 92 mm |
| Engine Stroke Size | 90.2 mm | 75.2 mm |
| Engine Compression Ratio | 11.0:1 | 12.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Drive Type | 4WD | Rear |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 2145 kg | 1785 kg |
| Vehicle Length | 5200 mm | 4880 mm |
| Vehicle Width | 1900 mm | 1860 mm |
| Vehicle Height | 1460 mm | 1380 mm |
| Wheelbase Size | 3080 mm | 2890 mm |
| Fuel Consumption Overall | 13.8 L/100km | 14.8 L/100km |
| Fuel Tank Capacity | 90 L | 70 L |
