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 4,178 cc (8 cylinders), 2005 Audi A8 is equipped with a bigger engine. In terms of performance, 2005 Audi A8 (335 HP @ 4000 RPM) has 75 more horse power than 2008 BMW X3. (260 HP @ 6600 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. 2005 Audi A8 weights approximately 430 kg more than 2008 BMW X3. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2005 Audi A8 (430 Nm) has 125 more torque (in Nm) than 2008 BMW X3. (305 Nm). 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 | 4178 cc | 2996 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 335 HP | 260 HP |
| Engine RPM | 4000 RPM | 6600 RPM |
| Torque | 430 Nm | 305 Nm |
| Engine Compression Ratio | 11.0:1 | 10.7:1 |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1945 kg | 1515 kg |
| Vehicle Length | 5060 mm | 4580 mm |
| Vehicle Width | 1900 mm | 1860 mm |
| Vehicle Height | 1450 mm | 1680 mm |
| Wheelbase Size | 2950 mm | 2800 mm |
| Fuel Consumption | 9.8 L/100km | 10.2 L/100km |
| Fuel Consumption City | 13.1 L/100km | 14.7 L/100km |
| Fuel Consumption Overall | 11.8 L/100km | 12.4 L/100km |
| Fuel Tank Capacity | 90 L | 67 L |
