1999 Audi S8 vs. 2007 BMW X3
To start off, 2007 BMW X3 is newer by 8 year(s). Which means there will be less support and parts availability for 1999 Audi S8. In addition, the cost of maintenance, including insurance, on 1999 Audi S8 would be higher. At 4,170 cc (8 cylinders), 1999 Audi S8 is equipped with a bigger engine. In terms of performance, 1999 Audi S8 (247 HP @ 7000 RPM) has 32 more horse power than 2007 BMW X3. (215 HP @ 4000 RPM). In normal driving conditions, 1999 Audi S8 should accelerate faster than 2007 BMW X3. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW X3 weights approximately 15 kg more than 1999 Audi S8.
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 BMW X3 (480 Nm @ 1750 RPM) has 150 more torque (in Nm) than 1999 Audi S8. (330 Nm @ 3400 RPM). This means 2007 BMW X3 will have an easier job in driving up hills or pulling heavy equipment than 1999 Audi S8.
Compare all specifications:
| 1999 Audi S8 | 2007 BMW X3 | |
| Make | Audi | BMW |
| Model | S8 | X3 |
| Year Released | 1999 | 2007 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 4170 cc | 2993 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 247 HP | 215 HP |
| Engine RPM | 7000 RPM | 4000 RPM |
| Torque | 330 Nm | 480 Nm |
| Torque RPM | 3400 RPM | 1750 RPM |
| Engine Compression Ratio | 11.0:1 | 17.0:1 |
| Top Speed | 250 km/hour | 205 km/hour |
| Acceleration 0-100mph | 6.6 seconds | 7.9 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 | 1750 kg | 1765 kg |
| Vehicle Length | 5040 mm | 4570 mm |
| Vehicle Width | 1890 mm | 1680 mm |
| Vehicle Height | 1420 mm | 1860 mm |
| Wheelbase Size | 2890 mm | 2800 mm |
| Fuel Consumption Overall | 13.9 L/100km | 8.6 L/100km |
| Fuel Tank Capacity | 90 L | 67 L |
