2004 Audi A6 vs. 2005 BMW 730
To start off, 2005 BMW 730 is newer by 1 year(s). Which means there will be less support and parts availability for 2004 Audi A6. In addition, the cost of maintenance, including insurance, on 2004 Audi A6 would be higher. At 2,979 cc (6 cylinders), 2005 BMW 730 is equipped with a bigger engine. In terms of performance, 2005 BMW 730 (225 HP @ 4000 RPM) has 45 more horse power than 2004 Audi A6. (180 HP @ 6000 RPM) In normal driving conditions, 2005 BMW 730 should accelerate faster than 2004 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW 730 weights approximately 313 kg more than 2004 Audi A6. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 BMW 730 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2005 BMW 730. However, in wet, icy, snow, or gravel driving conditions, 2004 Audi A6, being front wheel drive (FWD), will offer much better control with better grip. 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 (500 Nm @ 2000 RPM) has 265 more torque (in Nm) than 2004 Audi A6. (235 Nm @ 3000 RPM). This means 2005 BMW 730 will have an easier job in driving up hills or pulling heavy equipment than 2004 Audi A6.
Compare all specifications:
| 2004 Audi A6 | 2005 BMW 730 | |
| Make | Audi | BMW |
| Model | A6 | 730 |
| Year Released | 2004 | 2005 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2496 cc | 2979 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 180 HP | 225 HP |
| Engine RPM | 6000 RPM | 4000 RPM |
| Torque | 235 Nm | 500 Nm |
| Torque RPM | 3000 RPM | 2000 RPM |
| Engine Bore Size | 81 mm | 84.1 mm |
| Engine Stroke Size | 77.4 mm | 90 mm |
| Engine Compression Ratio | 10.3:1 | 18.0:1 |
| Acceleration 0-100mph | 9.5 seconds | 8 seconds |
| Drive Type | Front | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1662 kg | 1975 kg |
| Vehicle Length | 4940 mm | 5050 mm |
| Vehicle Width | 1860 mm | 1910 mm |
| Vehicle Height | 1470 mm | 1500 mm |
| Wheelbase Size | 2660 mm | 2890 mm |
| Fuel Consumption Highway | 7.2 L/100km | 6.4 L/100km |
| Fuel Consumption City | 13.8 L/100km | 11.3 L/100km |
| Fuel Consumption Overall | 9.6 L/100km | 8.2 L/100km |
| Fuel Tank Capacity | 70 L | 88 L |
