2009 Audi A6 vs. 2003 BMW 520
To start off, 2009 Audi A6 is newer by 6 year(s). Which means there will be less support and parts availability for 2003 BMW 520. In addition, the cost of maintenance, including insurance, on 2003 BMW 520 would be higher. At 2,393 cc (6 cylinders), 2009 Audi A6 is equipped with a bigger engine. In terms of performance, 2009 Audi A6 (176 HP @ 6000 RPM) has 9 more horse power than 2003 BMW 520. (167 HP @ 6100 RPM). In normal driving conditions, 2009 Audi A6 should accelerate faster than 2003 BMW 520. With that said, vehicle weight also plays an important factor in acceleration. 2003 BMW 520 weights approximately 190 kg more than 2009 Audi A6.
Because 2003 BMW 520 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 2003 BMW 520. However, in wet, icy, snow, or gravel driving conditions, 2009 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, 2009 Audi A6 (230 Nm @ 3000 RPM) has 20 more torque (in Nm) than 2003 BMW 520. (210 Nm @ 3500 RPM). This means 2009 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 2003 BMW 520.
Compare all specifications:
| 2009 Audi A6 | 2003 BMW 520 | |
| Make | Audi | BMW |
| Model | A6 | 520 |
| Year Released | 2009 | 2003 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 2393 cc | 2170 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 176 HP | 167 HP |
| Engine RPM | 6000 RPM | 6100 RPM |
| Torque | 230 Nm | 210 Nm |
| Torque RPM | 3000 RPM | 3500 RPM |
| Engine Bore Size | 81 mm | 80 mm |
| Engine Stroke Size | 77.4 mm | 72 mm |
| Engine Compression Ratio | 11.0:1 | 10.7:1 |
| Top Speed | 230 km/hour | 223 km/hour |
| Acceleration 0-100mph | 9.1 seconds | 9.5 seconds |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1480 kg | 1670 kg |
| Vehicle Length | 4800 mm | 4810 mm |
| Vehicle Width | 1820 mm | 1810 mm |
| Vehicle Height | 1460 mm | 1450 mm |
| Wheelbase Size | 2770 mm | 2890 mm |
| Fuel Consumption Overall | 10.9 L/100km | 9.5 L/100km |
| Fuel Tank Capacity | 70 L | 70 L |
