2005 Audi A8 vs. 2009 BMW X3
To start off, 2009 BMW X3 is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Audi A8. In addition, the cost of maintenance, including insurance, on 2005 Audi A8 would be higher. At 3,934 cc (8 cylinders), 2005 Audi A8 is equipped with a bigger engine. In terms of performance, 2005 Audi A8 (276 HP @ 3750 RPM) has 87 more horse power than 2009 BMW X3. (189 HP @ 6000 RPM). In normal driving conditions, 2005 Audi A8 should accelerate faster than 2009 BMW X3. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A8 weights approximately 125 kg more than 2009 BMW X3. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or rear wheel drive vehicles. 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, 2005 Audi A8 (650 Nm @ 1800 RPM) has 405 more torque (in Nm) than 2009 BMW X3. (245 Nm @ 3500 RPM). This means 2005 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW X3.
Compare all specifications:
| 2005 Audi A8 | 2009 BMW X3 | |
| Make | Audi | BMW |
| Model | A8 | X3 |
| Year Released | 2005 | 2009 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 3934 cc | 2494 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 276 HP | 189 HP |
| Engine RPM | 3750 RPM | 6000 RPM |
| Torque | 650 Nm | 245 Nm |
| Torque RPM | 1800 RPM | 3500 RPM |
| Engine Bore Size | 81 mm | 84.1 mm |
| Engine Stroke Size | 95.5 mm | 75 mm |
| Engine Compression Ratio | 18.0:1 | 11.0:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Acceleration 0-100mph | 6.7 seconds | 8.9 seconds |
| Drive Type | 4WD | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1940 kg | 1815 kg |
| Vehicle Length | 5060 mm | 4570 mm |
| Vehicle Width | 1900 mm | 1860 mm |
| Vehicle Height | 1450 mm | 1680 mm |
| Wheelbase Size | 2950 mm | 2800 mm |
| Fuel Consumption Overall | 9.7 L/100km | 11.2 L/100km |
| Fuel Tank Capacity | 90 L | 67 L |
