2008 Audi S8 vs. 2007 BMW X3
To start off, 2008 Audi S8 is newer by 1 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 5,204 cc (10 cylinders), 2008 Audi S8 is equipped with a bigger engine. In terms of performance, 2008 Audi S8 (444 HP @ 7000 RPM) has 229 more horse power than 2007 BMW X3. (215 HP @ 4000 RPM). In normal driving conditions, 2008 Audi S8 should accelerate faster than 2007 BMW X3. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi S8 weights approximately 175 kg more than 2007 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, 2008 Audi S8 (540 Nm @ 3500 RPM) has 60 more torque (in Nm) than 2007 BMW X3. (480 Nm @ 1750 RPM). This means 2008 Audi S8 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW X3.
Compare all specifications:
| 2008 Audi S8 | 2007 BMW X3 | |
| Make | Audi | BMW |
| Model | S8 | X3 |
| Year Released | 2008 | 2007 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 5204 cc | 2993 cc |
| Engine Cylinders | 10 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 444 HP | 215 HP |
| Engine RPM | 7000 RPM | 4000 RPM |
| Torque | 540 Nm | 480 Nm |
| Torque RPM | 3500 RPM | 1750 RPM |
| Engine Bore Size | 84.5 mm | 84 mm |
| Engine Stroke Size | 92.8 mm | 90 mm |
| Engine Compression Ratio | 12.5:1 | 17.0:1 |
| Fuel Type | Gasoline | Diesel |
| Top Speed | 250 km/hour | 210 km/hour |
| Acceleration 0-100mph | 5.4 seconds | 8.2 seconds |
| Drive Type | AWD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1940 kg | 1765 kg |
| Vehicle Width | 1900 mm | 1680 mm |
| Wheelbase Size | 2950 mm | 2800 mm |
| Fuel Consumption Overall | 13.4 L/100km | 8.6 L/100km |
| Fuel Tank Capacity | 90 L | 67 L |
