2009 Audi A6 vs. 2005 BMW 730
To start off, 2009 Audi A6 is newer by 4 year(s). Which means there will be less support and parts availability for 2005 BMW 730. In addition, the cost of maintenance, including insurance, on 2005 BMW 730 would be higher. At 3,129 cc (6 cylinders), 2009 Audi A6 is equipped with a bigger engine. In terms of performance, 2009 Audi A6 (342 HP @ 6500 RPM) has 88 more horse power than 2005 BMW 730. (254 HP @ 6600 RPM). In normal driving conditions, 2009 Audi A6 should accelerate faster than 2005 BMW 730. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW 730 weights approximately 395 kg more than 2009 Audi A6.
Because 2009 Audi A6 is four wheel drive (4WD), it will have significant more traction and grip than 2005 BMW 730. 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, 2005 BMW 730 (300 Nm @ 2500 RPM) has 57 more torque (in Nm) than 2009 Audi A6. (243 Nm @ 3250 RPM). This means 2005 BMW 730 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A6.
Compare all specifications:
| 2009 Audi A6 | 2005 BMW 730 | |
| Make | Audi | BMW |
| Model | A6 | 730 |
| Year Released | 2009 | 2005 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3129 cc | 2977 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 342 HP | 254 HP |
| Engine RPM | 6500 RPM | 6600 RPM |
| Torque | 243 Nm | 300 Nm |
| Torque RPM | 3250 RPM | 2500 RPM |
| Engine Bore Size | 84.6 mm | 85 mm |
| Engine Stroke Size | 92.7 mm | 88 mm |
| Engine Compression Ratio | 12.5:1 | 10.7:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Top Speed | 209 km/hour | 244 km/hour |
| Acceleration 0-100mph | 7.3 seconds | 7.8 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1540 kg | 1935 kg |
| Vehicle Length | 4920 mm | 5040 mm |
| Vehicle Width | 1470 mm | 1910 mm |
| Vehicle Height | 1860 mm | 1500 mm |
| Wheelbase Size | 2850 mm | 2840 mm |
| Fuel Consumption Overall | 15.5 L/100km | 10.7 L/100km |
| Fuel Tank Capacity | 70 L | 88 L |
