2009 Audi Q7 vs. 2007 BMW 550
To start off, 2009 Audi Q7 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 BMW 550. In addition, the cost of maintenance, including insurance, on 2007 BMW 550 would be higher. At 4,799 cc (8 cylinders), 2007 BMW 550 is equipped with a bigger engine. In terms of performance, 2007 BMW 550 (362 HP @ 6300 RPM) has 82 more horse power than 2009 Audi Q7. (280 HP @ 6200 RPM) In normal driving conditions, 2007 BMW 550 should accelerate faster than 2009 Audi Q7. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW 550 weights approximately 730 kg more than 2009 Audi Q7. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Audi Q7 is four wheel drive (4WD), it will have significant more traction and grip than 2007 BMW 550. 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, 2007 BMW 550 (490 Nm @ 3400 RPM) has 129 more torque (in Nm) than 2009 Audi Q7. (361 Nm @ 2750 RPM). This means 2007 BMW 550 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi Q7.
Compare all specifications:
| 2009 Audi Q7 | 2007 BMW 550 | |
| Make | Audi | BMW |
| Model | Q7 | 550 |
| Year Released | 2009 | 2007 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3597 cc | 4799 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 280 HP | 362 HP |
| Engine RPM | 6200 RPM | 6300 RPM |
| Torque | 361 Nm | 490 Nm |
| Torque RPM | 2750 RPM | 3400 RPM |
| Engine Compression Ratio | 11.0:1 | 10.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 930 kg | 1660 kg |
| Vehicle Length | 5090 mm | 4850 mm |
| Vehicle Width | 1990 mm | 1470 mm |
| Vehicle Height | 1740 mm | 1850 mm |
| Wheelbase Size | 3010 mm | 2890 mm |
| Fuel Consumption Overall | 6.8 L/100km | 10.8 L/100km |
| Fuel Tank Capacity | 100 L | 70 L |
