2005 Audi A8 vs. 2009 BMW M6
To start off, 2009 BMW M6 is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Audi A8. In addition, the cost of maintenance, including insurance, on 2005 Audi A8 would be higher. At 4,999 cc (10 cylinders), 2009 BMW M6 is equipped with a bigger engine. In terms of performance, 2009 BMW M6 (501 HP @ 7750 RPM) has 166 more horse power than 2005 Audi A8. (335 HP @ 4000 RPM) In normal driving conditions, 2009 BMW M6 should accelerate faster than 2005 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A8 weights approximately 160 kg more than 2009 BMW M6.
Let's talk about torque, 2009 BMW M6 (520 Nm) has 90 more torque (in Nm) than 2005 Audi A8. (430 Nm). This means 2009 BMW M6 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A8.
Compare all specifications:
| 2005 Audi A8 | 2009 BMW M6 | |
| Make | Audi | BMW |
| Model | A8 | M6 |
| Year Released | 2005 | 2009 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4178 cc | 4999 cc |
| Engine Cylinders | 8 cylinders | 10 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 335 HP | 501 HP |
| Engine RPM | 4000 RPM | 7750 RPM |
| Torque | 430 Nm | 520 Nm |
| Engine Bore Size | 85 mm | 92 mm |
| Engine Stroke Size | 93 mm | 75.2 mm |
| Engine Compression Ratio | 11.0:1 | 12.0:1 |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1945 kg | 1785 kg |
| Vehicle Length | 5060 mm | 4880 mm |
| Vehicle Width | 1900 mm | 1380 mm |
| Vehicle Height | 1450 mm | 1860 mm |
| Wheelbase Size | 2950 mm | 2790 mm |
| Fuel Consumption Overall | 11.8 L/100km | 14.8 L/100km |
| Fuel Tank Capacity | 90 L | 70 L |
