2006 Audi A6 vs. 2005 BMW 745
To start off, 2006 Audi A6 is newer by 1 year(s). Which means there will be less support and parts availability for 2005 BMW 745. In addition, the cost of maintenance, including insurance, on 2005 BMW 745 would be higher. At 4,397 cc (8 cylinders), 2005 BMW 745 is equipped with a bigger engine. In terms of performance, 2005 BMW 745 (328 HP @ 6000 RPM) has 76 more horse power than 2006 Audi A6. (252 HP @ 6500 RPM) In normal driving conditions, 2005 BMW 745 should accelerate faster than 2006 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW 745 weights approximately 265 kg more than 2006 Audi A6. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 Audi A6 is four wheel drive (4WD), it will have significant more traction and grip than 2005 BMW 745. 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, 2005 BMW 745 (450 Nm @ 3600 RPM) has 120 more torque (in Nm) than 2006 Audi A6. (330 Nm @ 3250 RPM). This means 2005 BMW 745 will have an easier job in driving up hills or pulling heavy equipment than 2006 Audi A6.
Compare all specifications:
| 2006 Audi A6 | 2005 BMW 745 | |
| Make | Audi | BMW |
| Model | A6 | 745 |
| Year Released | 2006 | 2005 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3123 cc | 4397 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 252 HP | 328 HP |
| Engine RPM | 6500 RPM | 6000 RPM |
| Torque | 330 Nm | 450 Nm |
| Torque RPM | 3250 RPM | 3600 RPM |
| Engine Bore Size | 84.5 mm | 92 mm |
| Engine Stroke Size | 92.8 mm | 82.7 mm |
| Engine Compression Ratio | 13.0:1 | 10.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 250 km/hour | 250 km/hour |
| Acceleration 0-100mph | 7.1 seconds | 6.3 seconds |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1680 kg | 1945 kg |
| Vehicle Length | 4920 mm | 5040 mm |
| Vehicle Width | 1860 mm | 1910 mm |
| Vehicle Height | 1470 mm | 1500 mm |
| Wheelbase Size | 2850 mm | 3000 mm |
| Fuel Consumption Overall | 10.9 L/100km | 11.2 L/100km |
| Fuel Tank Capacity | 80 L | 88 L |
