2008 Audi A6 vs. 2005 BMW X5
To start off, 2008 Audi A6 is newer by 3 year(s). Which means there will be less support and parts availability for 2005 BMW X5. In addition, the cost of maintenance, including insurance, on 2005 BMW X5 would be higher. At 2,967 cc, 2008 Audi A6 is equipped with a bigger engine. In terms of performance, 2008 Audi A6 (231 HP @ 4000 RPM) has 16 more horse power than 2005 BMW X5. (215 HP @ 4000 RPM). In normal driving conditions, 2008 Audi A6 should accelerate faster than 2005 BMW X5. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW X5 weights approximately 405 kg more than 2008 Audi A6.
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 BMW X5 (520 Nm @ 2000 RPM) has 70 more torque (in Nm) than 2008 Audi A6. (450 Nm @ 1400 RPM). This means 2005 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 2008 Audi A6.
Compare all specifications:
| 2008 Audi A6 | 2005 BMW X5 | |
| Make | Audi | BMW |
| Model | A6 | X5 |
| Year Released | 2008 | 2005 |
| Body Type | Station Wagon | SUV |
| Engine Position | Front | Front |
| Engine Size | 2967 cc | 2926 cc |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 231 HP | 215 HP |
| Engine RPM | 4000 RPM | 4000 RPM |
| Torque | 450 Nm | 520 Nm |
| Torque RPM | 1400 RPM | 2000 RPM |
| Engine Bore Size | 83 mm | 84 mm |
| Engine Stroke Size | 91.4 mm | 90 mm |
| Engine Compression Ratio | 17.0:1 | 18.0:1 |
| Fuel Type | Diesel | Diesel |
| Top Speed | 251 km/hour | 210 km/hour |
| Acceleration 0-100mph | 8.2 seconds | 8.3 seconds |
| Drive Type | 4WD | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1765 kg | 2170 kg |
| Vehicle Length | 4940 mm | 4670 mm |
| Vehicle Width | 1860 mm | 1880 mm |
| Vehicle Height | 1470 mm | 1720 mm |
| Wheelbase Size | 2850 mm | 2830 mm |
| Fuel Consumption Overall | 10.2 L/100km | 8.6 L/100km |
