2009 Audi A6 vs. 2008 BMW 550
To start off, 2009 Audi A6 is newer by 1 year(s). Which means there will be less support and parts availability for 2008 BMW 550. In addition, the cost of maintenance, including insurance, on 2008 BMW 550 would be higher. At 4,800 cc (8 cylinders), 2008 BMW 550 is equipped with a bigger engine. In terms of performance, 2008 BMW 550 (360 HP @ 6300 RPM) has 182 more horse power than 2009 Audi A6. (178 HP @ 3300 RPM) In normal driving conditions, 2008 BMW 550 should accelerate faster than 2009 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2008 BMW 550 weights approximately 32 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 2008 BMW 550. 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, 2008 BMW 550 (489 Nm @ 3400 RPM) has 109 more torque (in Nm) than 2009 Audi A6. (380 Nm @ 1400 RPM). This means 2008 BMW 550 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A6.
Compare all specifications:
| 2009 Audi A6 | 2008 BMW 550 | |
| Make | Audi | BMW |
| Model | A6 | 550 |
| Year Released | 2009 | 2008 |
| Engine Position | Front | Front |
| Engine Size | 2698 cc | 4800 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 178 HP | 360 HP |
| Engine RPM | 3300 RPM | 6300 RPM |
| Torque | 380 Nm | 489 Nm |
| Torque RPM | 1400 RPM | 3400 RPM |
| Fuel Type | Diesel | Gasoline |
| Top Speed | 223 km/hour | 241 km/hour |
| Acceleration 0-100mph | 9.1 seconds | 5.5 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 | 1698 kg | 1730 kg |
| Vehicle Length | 4940 mm | 4860 mm |
| Vehicle Width | 1860 mm | 1850 mm |
| Vehicle Height | 1470 mm | 1470 mm |
| Wheelbase Size | 2850 mm | 2890 mm |
| Fuel Consumption Overall | 8.3 L/100km | 10.8 L/100km |
| Fuel Tank Capacity | 80 L | 70 L |
