2005 Audi A8 vs. 2008 BMW X5
To start off, 2008 BMW X5 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 5,998 cc, 2005 Audi A8 is equipped with a bigger engine. With that said, vehicle weight also plays an important factor in acceleration. 2008 BMW X5 weights approximately 46 kg more than 2005 Audi A8.
Because 2005 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2008 BMW X5. In wet, icy, snow, or gravel driving conditions, 2005 Audi A8 will offer significantly more control. 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 (560 Nm) has 120 more torque (in Nm) than 2008 BMW X5. (440 Nm). This means 2005 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2008 BMW X5.
Compare all specifications:
| 2005 Audi A8 | 2008 BMW X5 | |
| Make | Audi | BMW |
| Model | A8 | X5 |
| Year Released | 2005 | 2008 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 5998 cc | 4398 cc |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 450 HP | 0 HP |
| Torque | 560 Nm | 440 Nm |
| Engine Bore Size | 84.1 mm | 92 mm |
| Engine Stroke Size | 90 mm | 82.7 mm |
| Engine Compression Ratio | 11.0:1 | 10.0:1 |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 2145 kg | 2191 kg |
| Vehicle Length | 5200 mm | 4870 mm |
| Vehicle Height | 1460 mm | 1470 mm |
| Wheelbase Size | 3080 mm | 2830 mm |
| Fuel Consumption Overall | 13.8 L/100km | 15.4 L/100km |
| Fuel Tank Capacity | 90 L | 85 L |
