2009 Audi A8 vs. 2007 BMW X3
To start off, 2009 Audi A8 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 BMW X3. In addition, the cost of maintenance, including insurance, on 2007 BMW X3 would be higher. At 2,772 cc (6 cylinders), 2009 Audi A8 is equipped with a bigger engine. In terms of performance, 2009 Audi A8 (207 HP @ 5500 RPM) has 18 more horse power than 2007 BMW X3. (189 HP @ 6000 RPM). In normal driving conditions, 2009 Audi A8 should accelerate faster than 2007 BMW X3. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW X3 weights approximately 50 kg more than 2009 Audi A8.
Because 2007 BMW X3 is four wheel drive (4WD), it will have significant more traction and grip than 2009 Audi A8. In wet, icy, snow, or gravel driving conditions, 2007 BMW X3 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 A8 (280 Nm @ 3000 RPM) has 35 more torque (in Nm) than 2007 BMW X3. (245 Nm @ 3500 RPM). This means 2009 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW X3.
Compare all specifications:
| 2009 Audi A8 | 2007 BMW X3 | |
| Make | Audi | BMW |
| Model | A8 | X3 |
| Year Released | 2009 | 2007 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 2772 cc | 2494 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 207 HP | 189 HP |
| Engine RPM | 5500 RPM | 6000 RPM |
| Torque | 280 Nm | 245 Nm |
| Torque RPM | 3000 RPM | 3500 RPM |
| Engine Bore Size | 84.5 mm | 84.1 mm |
| Engine Stroke Size | 82.4 mm | 75 mm |
| Engine Compression Ratio | 12.5:1 | 10.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Acceleration 0-100mph | 8 seconds | 9.6 seconds |
| Drive Type | Front | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1690 kg | 1740 kg |
| Vehicle Length | 5070 mm | 4570 mm |
| Vehicle Width | 1900 mm | 1680 mm |
| Vehicle Height | 1450 mm | 1860 mm |
| Wheelbase Size | 2950 mm | 2800 mm |
| Fuel Consumption Overall | 8.3 L/100km | 13 L/100km |
| Fuel Tank Capacity | 90 L | 67 L |
