2009 Audi A6 vs. 2006 BMW 745
To start off, 2009 Audi A6 is newer by 3 year(s). Which means there will be less support and parts availability for 2006 BMW 745. In addition, the cost of maintenance, including insurance, on 2006 BMW 745 would be higher. At 4,423 cc (8 cylinders), 2006 BMW 745 is equipped with a bigger engine. In terms of performance, 2006 BMW 745 (325 HP @ 3800 RPM) has 29 more horse power than 2009 Audi A6. (296 HP @ 6200 RPM) In normal driving conditions, 2006 BMW 745 should accelerate faster than 2009 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 745 weights approximately 365 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 2006 BMW 745. 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, 2006 BMW 745 (700 Nm @ 1900 RPM) has 300 more torque (in Nm) than 2009 Audi A6. (400 Nm @ 3000 RPM). This means 2006 BMW 745 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A6.
Compare all specifications:
| 2009 Audi A6 | 2006 BMW 745 | |
| Make | Audi | BMW |
| Model | A6 | 745 |
| Year Released | 2009 | 2006 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4172 cc | 4423 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 296 HP | 325 HP |
| Engine RPM | 6200 RPM | 3800 RPM |
| Torque | 400 Nm | 700 Nm |
| Torque RPM | 3000 RPM | 1900 RPM |
| Engine Compression Ratio | 11.0:1 | 17.0:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Top Speed | 250 km/hour | 245 km/hour |
| Acceleration 0-100mph | 6.9 seconds | 6.6 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 | 2115 kg |
| Vehicle Length | 4840 mm | 5050 mm |
| Vehicle Width | 1860 mm | 1910 mm |
| Vehicle Height | 1460 mm | 1500 mm |
| Wheelbase Size | 2770 mm | 3000 mm |
| Fuel Consumption Overall | 13 L/100km | 9.5 L/100km |
| Fuel Tank Capacity | 82 L | 88 L |
