2007 Audi A6 vs. 2003 BMW 520
To start off, 2007 Audi A6 is newer by 4 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 2,698 cc (6 cylinders), 2007 Audi A6 is equipped with a bigger engine. In terms of performance, 2007 Audi A6 (179 HP @ 3300 RPM) has 12 more horse power than 2003 BMW 520. (167 HP @ 6100 RPM). In normal driving conditions, 2007 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 5 kg more than 2007 Audi A6.
Because 2007 Audi A6 is four wheel drive (4WD), it will have significant more traction and grip than 2003 BMW 520. In wet, icy, snow, or gravel driving conditions, 2007 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, 2007 Audi A6 (380 Nm @ 1400 RPM) has 170 more torque (in Nm) than 2003 BMW 520. (210 Nm @ 3500 RPM). This means 2007 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 2003 BMW 520. 2003 BMW 520 has automatic transmission and 2007 Audi A6 has manual transmission. 2007 Audi A6 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 BMW 520 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 Audi A6 | 2003 BMW 520 | |
| Make | Audi | BMW |
| Model | A6 | 520 |
| Year Released | 2007 | 2003 |
| Body Type | Station Wagon | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 2698 cc | 2171 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 179 HP | 167 HP |
| Engine RPM | 3300 RPM | 6100 RPM |
| Torque | 380 Nm | 210 Nm |
| Torque RPM | 1400 RPM | 3500 RPM |
| Engine Bore Size | 83 mm | 80 mm |
| Engine Stroke Size | 83.1 mm | 72 mm |
| Engine Compression Ratio | 17.0:1 | 10.7:1 |
| Top Speed | 223 km/hour | 217 km/hour |
| Acceleration 0-100mph | 9.1 seconds | 10.5 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1695 kg | 1700 kg |
| Vehicle Length | 4590 mm | 4810 mm |
| Vehicle Width | 1860 mm | 1810 mm |
| Vehicle Height | 1470 mm | 1450 mm |
| Wheelbase Size | 2850 mm | 2730 mm |
| Fuel Consumption Overall | 8.3 L/100km | 9.7 L/100km |
| Fuel Tank Capacity | 80 L | 70 L |
