2009 Audi Q7 vs. 2003 BMW 520
To start off, 2009 Audi Q7 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 4,163 cc (8 cylinders), 2009 Audi Q7 is equipped with a bigger engine. In terms of performance, 2009 Audi Q7 (350 HP @ 6800 RPM) has 183 more horse power than 2003 BMW 520. (167 HP @ 6100 RPM). In normal driving conditions, 2009 Audi Q7 should accelerate faster than 2003 BMW 520.
Because 2009 Audi Q7 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, 2009 Audi Q7 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, 2009 Audi Q7 (441 Nm @ 3500 RPM) has 231 more torque (in Nm) than 2003 BMW 520. (210 Nm @ 3500 RPM). This means 2009 Audi Q7 will have an easier job in driving up hills or pulling heavy equipment than 2003 BMW 520.
Compare all specifications:
| 2009 Audi Q7 | 2003 BMW 520 | |
| Make | Audi | BMW |
| Model | Q7 | 520 |
| Year Released | 2009 | 2003 |
| Body Type | SUV | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 2171 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 350 HP | 167 HP |
| Engine RPM | 6800 RPM | 6100 RPM |
| Torque | 441 Nm | 210 Nm |
| Torque RPM | 3500 RPM | 3500 RPM |
| Engine Compression Ratio | 12.5:1 | 10.7:1 |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 7 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Length | 5090 mm | 4810 mm |
| Vehicle Width | 1990 mm | 1810 mm |
| Vehicle Height | 1740 mm | 1450 mm |
| Wheelbase Size | 3010 mm | 2730 mm |
| Fuel Consumption Highway | 13.1 L/100km | 7.7 L/100km |
| Fuel Consumption City | 18.1 L/100km | 13 L/100km |
| Fuel Consumption Overall | 15.7 L/100km | 9.7 L/100km |
| Fuel Tank Capacity | 100 L | 70 L |
