2005 Audi A8 vs. 2008 BMW X3
To start off, 2008 BMW X3 is newer by 3 year(s). Which means there will be less support and parts availability for 2005 Audi A8. In addition, the cost of maintenance, including insurance, on 2005 Audi A8 would be higher. At 3,697 cc (8 cylinders), 2005 Audi A8 is equipped with a bigger engine. In terms of performance, 2005 Audi A8 (271 HP @ 6000 RPM) has 43 more horse power than 2008 BMW X3. (228 HP @ 5900 RPM). In normal driving conditions, 2005 Audi A8 should accelerate faster than 2008 BMW X3. With that said, vehicle weight also plays an important factor in acceleration. 2008 BMW X3 weights approximately 65 kg more than 2005 Audi A8.
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, 2005 Audi A8 (360 Nm @ 3250 RPM) has 60 more torque (in Nm) than 2008 BMW X3. (300 Nm @ 3500 RPM). This means 2005 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2008 BMW X3.
Compare all specifications:
| 2005 Audi A8 | 2008 BMW X3 | |
| Make | Audi | BMW |
| Model | A8 | X3 |
| Year Released | 2005 | 2008 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 3697 cc | 2979 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 271 HP | 228 HP |
| Engine RPM | 6000 RPM | 5900 RPM |
| Torque | 360 Nm | 300 Nm |
| Torque RPM | 3250 RPM | 3500 RPM |
| Engine Compression Ratio | 11.0:1 | 10.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 250 km/hour | 205 km/hour |
| Acceleration 0-100mph | 8.9 seconds | 7.8 seconds |
| Drive Type | 4WD | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1770 kg | 1835 kg |
| Vehicle Length | 5060 mm | 4570 mm |
| Vehicle Width | 1900 mm | 1860 mm |
| Vehicle Height | 1450 mm | 1680 mm |
| Wheelbase Size | 2890 mm | 2800 mm |
| Fuel Consumption Overall | 11.7 L/100km | 11.4 L/100km |
| Fuel Tank Capacity | 90 L | 67 L |
