2006 Audi A8 vs. 2004 BMW X5
To start off, 2006 Audi A8 is newer by 2 year(s). Which means there will be less support and parts availability for 2004 BMW X5. In addition, the cost of maintenance, including insurance, on 2004 BMW X5 would be higher. At 4,802 cc (8 cylinders), 2004 BMW X5 is equipped with a bigger engine. In terms of performance, 2004 BMW X5 (355 HP @ 7400 RPM) has 26 more horse power than 2006 Audi A8. (329 HP @ 6500 RPM) In normal driving conditions, 2004 BMW X5 should accelerate faster than 2006 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2004 BMW X5 weights approximately 420 kg more than 2006 Audi A8. 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, 2004 BMW X5 (500 Nm) has 70 more torque (in Nm) than 2006 Audi A8. (430 Nm). This means 2004 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 2006 Audi A8.
Compare all specifications:
| 2006 Audi A8 | 2004 BMW X5 | |
| Make | Audi | BMW |
| Model | A8 | X5 |
| Year Released | 2006 | 2004 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 4172 cc | 4802 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 329 HP | 355 HP |
| Engine RPM | 6500 RPM | 7400 RPM |
| Torque | 430 Nm | 500 Nm |
| Engine Compression Ratio | 11.0:1 | 10.5:1 |
| Drive Type | 4WD | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1855 kg | 2275 kg |
| Vehicle Length | 5060 mm | 4670 mm |
| Vehicle Width | 1900 mm | 1880 mm |
| Vehicle Height | 1450 mm | 1760 mm |
| Wheelbase Size | 2950 mm | 2890 mm |
| Fuel Tank Capacity | 90 L | 92 L |
