2007 Audi A6 vs. 2009 BMW 550
To start off, 2009 BMW 550 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Audi A6. In addition, the cost of maintenance, including insurance, on 2007 Audi A6 would be higher. At 2,698 cc (6 cylinders), 2007 Audi A6 is equipped with a bigger engine. In terms of performance, 2009 BMW 550 (362 HP @ 6300 RPM) has 183 more horse power than 2007 Audi A6. (179 HP @ 3300 RPM) In normal driving conditions, 2009 BMW 550 should accelerate faster than 2007 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi A6 weights approximately 35 kg more than 2009 BMW 550.
Because 2007 Audi A6 is four wheel drive (4WD), it will have significant more traction and grip than 2009 BMW 550. In wet, icy, snow, or gravel driving conditions, 2007 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, 2009 BMW 550 (490 Nm @ 3400 RPM) has 110 more torque (in Nm) than 2007 Audi A6. (380 Nm @ 1400 RPM). This means 2009 BMW 550 will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi A6.
Compare all specifications:
| 2007 Audi A6 | 2009 BMW 550 | |
| Make | Audi | BMW |
| Model | A6 | 550 |
| Year Released | 2007 | 2009 |
| Engine Position | Front | Front |
| Engine Size | 2698 cc | 2495 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 179 HP | 362 HP |
| Engine RPM | 3300 RPM | 6300 RPM |
| Torque | 380 Nm | 490 Nm |
| Torque RPM | 1400 RPM | 3400 RPM |
| Engine Compression Ratio | 17.0:1 | 10.5:1 |
| Fuel Type | Diesel | Gasoline |
| Top Speed | 223 km/hour | 235 km/hour |
| Acceleration 0-100mph | 9.1 seconds | 5.9 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1695 kg | 1660 kg |
| Vehicle Length | 4590 mm | 4850 mm |
| Vehicle Width | 1860 mm | 1490 mm |
| Vehicle Height | 1470 mm | 1850 mm |
| Wheelbase Size | 2850 mm | 2890 mm |
| Fuel Consumption Overall | 8.3 L/100km | 11.1 L/100km |
| Fuel Tank Capacity | 80 L | 70 L |
