2009 Audi A6 vs. 2007 BMW M6
To start off, 2009 Audi A6 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 BMW M6. In addition, the cost of maintenance, including insurance, on 2007 BMW M6 would be higher. At 4,999 cc (10 cylinders), 2007 BMW M6 is equipped with a bigger engine. In terms of performance, 2007 BMW M6 (500 HP @ 7750 RPM) has 248 more horse power than 2009 Audi A6. (252 HP @ 6500 RPM) In normal driving conditions, 2007 BMW M6 should accelerate faster than 2009 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW M6 weights approximately 260 kg more than 2009 Audi A6. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Audi A6 is four wheel drive (4WD), it will have significant more traction and grip than 2007 BMW M6. In wet, icy, snow, or gravel driving conditions, 2009 Audi A6 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, 2007 BMW M6 (519 Nm @ 6100 RPM) has 189 more torque (in Nm) than 2009 Audi A6. (330 Nm @ 3250 RPM). This means 2007 BMW M6 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A6.
Compare all specifications:
| 2009 Audi A6 | 2007 BMW M6 | |
| Make | Audi | BMW |
| Model | A6 | M6 |
| Year Released | 2009 | 2007 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 3123 cc | 4999 cc |
| Engine Cylinders | 6 cylinders | 10 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 252 HP | 500 HP |
| Engine RPM | 6500 RPM | 7750 RPM |
| Torque | 330 Nm | 519 Nm |
| Torque RPM | 3250 RPM | 6100 RPM |
| Engine Bore Size | 84.5 mm | 92 mm |
| Engine Stroke Size | 92.8 mm | 75.2 mm |
| Engine Compression Ratio | 13.0:1 | 12.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 250 km/hour | 249 km/hour |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1680 kg | 1940 kg |
| Vehicle Length | 4920 mm | 4880 mm |
| Vehicle Width | 1860 mm | 1860 mm |
| Vehicle Height | 1470 mm | 1380 mm |
| Wheelbase Size | 2850 mm | 2790 mm |
| Fuel Consumption Overall | 10.9 L/100km | 17 L/100km |
| Fuel Tank Capacity | 80 L | 70 L |
