2007 Audi A8 vs. 2004 BMW X3
To start off, 2007 Audi A8 is newer by 3 year(s). Which means there will be less support and parts availability for 2004 BMW X3. In addition, the cost of maintenance, including insurance, on 2004 BMW X3 would be higher. At 4,134 cc (8 cylinders), 2007 Audi A8 is equipped with a bigger engine. In terms of performance, 2007 Audi A8 (322 HP @ 3750 RPM) has 138 more horse power than 2004 BMW X3. (184 HP @ 7400 RPM). In normal driving conditions, 2007 Audi A8 should accelerate faster than 2004 BMW X3. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi A8 weights approximately 127 kg more than 2004 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, 2007 Audi A8 (650 Nm) has 413 more torque (in Nm) than 2004 BMW X3. (237 Nm). This means 2007 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2004 BMW X3.
Compare all specifications:
| 2007 Audi A8 | 2004 BMW X3 | |
| Make | Audi | BMW |
| Model | A8 | X3 |
| Year Released | 2007 | 2004 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 4134 cc | 2491 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 322 HP | 184 HP |
| Engine RPM | 3750 RPM | 7400 RPM |
| Torque | 650 Nm | 237 Nm |
| Engine Compression Ratio | 16.5:1 | 10.5:1 |
| Drive Type | 4WD | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1945 kg | 1818 kg |
| Vehicle Length | 5070 mm | 4570 mm |
| Vehicle Width | 1900 mm | 1860 mm |
| Vehicle Height | 1450 mm | 1680 mm |
| Wheelbase Size | 2950 mm | 2890 mm |
| Fuel Consumption Overall | 9.4 L/100km | 11.8 L/100km |
| Fuel Tank Capacity | 90 L | 67 L |
