2007 Audi S8 vs. 2004 BMW X3
To start off, 2007 Audi S8 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 5,204 cc (10 cylinders), 2007 Audi S8 is equipped with a bigger engine. In terms of performance, 2007 Audi S8 (444 HP @ 7000 RPM) has 219 more horse power than 2004 BMW X3. (225 HP @ 7400 RPM). In normal driving conditions, 2007 Audi S8 should accelerate faster than 2004 BMW X3. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi S8 weights approximately 115 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.
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 S8 (540 Nm) has 250 more torque (in Nm) than 2004 BMW X3. (290 Nm). This means 2007 Audi S8 will have an easier job in driving up hills or pulling heavy equipment than 2004 BMW X3.
Compare all specifications:
| 2007 Audi S8 | 2004 BMW X3 | |
| Make | Audi | BMW |
| Model | S8 | X3 |
| Year Released | 2007 | 2004 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 5204 cc | 2925 cc |
| Engine Cylinders | 10 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 444 HP | 225 HP |
| Engine RPM | 7000 RPM | 7400 RPM |
| Torque | 540 Nm | 290 Nm |
| Engine Bore Size | 84.5 mm | 84 mm |
| Engine Stroke Size | 92.8 mm | 90 mm |
| Engine Compression Ratio | 12.5:1 | 10.2:1 |
| Drive Type | AWD | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1940 kg | 1825 kg |
| Vehicle Length | 5070 mm | 4570 mm |
| Vehicle Width | 1900 mm | 1860 mm |
| Vehicle Height | 1430 mm | 1680 mm |
| Wheelbase Size | 2950 mm | 2800 mm |
| Fuel Tank Capacity | 90 L | 67 L |
