2006 Audi A6 vs. 2008 BMW 540
To start off, 2008 BMW 540 is newer by 2 year(s). Which means there will be less support and parts availability for 2006 Audi A6. In addition, the cost of maintenance, including insurance, on 2006 Audi A6 would be higher. At 4,398 cc, 2008 BMW 540 is equipped with a bigger engine. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi A6 weights approximately 15 kg more than 2008 BMW 540.
Because 2006 Audi A6 is four wheel drive (4WD), it will have significant more traction and grip than 2008 BMW 540. In wet, icy, snow, or gravel driving conditions, 2006 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 540 (440 Nm @ 3600 RPM) has 40 more torque (in Nm) than 2006 Audi A6. (400 Nm @ 3000 RPM). This means 2008 BMW 540 will have an easier job in driving up hills or pulling heavy equipment than 2006 Audi A6.
Compare all specifications:
| 2006 Audi A6 | 2008 BMW 540 | |
| Make | Audi | BMW |
| Model | A6 | 540 |
| Year Released | 2006 | 2008 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4172 cc | 4398 cc |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 296 HP | 0 HP |
| Torque | 400 Nm | 440 Nm |
| Torque RPM | 3000 RPM | 3600 RPM |
| Engine Bore Size | 84.5 mm | 92 mm |
| Engine Stroke Size | 93 mm | 82.7 mm |
| Engine Compression Ratio | 11.0:1 | 10.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 250 km/hour | 250 km/hour |
| Acceleration 0-100mph | 6.9 seconds | 6.2 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1750 kg | 1735 kg |
| Vehicle Length | 4840 mm | 5050 mm |
| Vehicle Height | 1460 mm | 1420 mm |
| Wheelbase Size | 2770 mm | 2840 mm |
| Fuel Consumption Overall | 13 L/100km | 12.5 L/100km |
| Fuel Tank Capacity | 82 L | 70 L |
