2006 BMW X5 vs. 2008 Audi A4
To start off, 2008 Audi A4 is newer by 2 year(s). Which means there will be less support and parts availability for 2006 BMW X5. In addition, the cost of maintenance, including insurance, on 2006 BMW X5 would be higher. At 2,981 cc (6 cylinders), 2006 BMW X5 is equipped with a bigger engine. In terms of performance, 2006 BMW X5 (225 HP @ 5900 RPM) has 28 more horse power than 2008 Audi A4. (197 HP @ 5100 RPM). In normal driving conditions, 2006 BMW X5 should accelerate faster than 2008 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW X5 weights approximately 345 kg more than 2008 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2006 BMW X5 (290 Nm @ 3500 RPM) has 10 more torque (in Nm) than 2008 Audi A4. (280 Nm @ 1800 RPM). This means 2006 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 2008 Audi A4.
Compare all specifications:
| 2006 BMW X5 | 2008 Audi A4 | |
| Make | BMW | Audi |
| Model | X5 | A4 |
| Year Released | 2006 | 2008 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2981 cc | 1984 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 225 HP | 197 HP |
| Engine RPM | 5900 RPM | 5100 RPM |
| Torque | 290 Nm | 280 Nm |
| Torque RPM | 3500 RPM | 1800 RPM |
| Engine Bore Size | 84 mm | 82.6 mm |
| Engine Stroke Size | 89.6 mm | 92.8 mm |
| Engine Compression Ratio | 10.2:1 | 10.5:1 |
| Drive Type | 4WD | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1835 kg | 1490 kg |
| Vehicle Length | 4670 mm | 4590 mm |
| Vehicle Width | 1880 mm | 1780 mm |
| Vehicle Height | 1770 mm | 1430 mm |
| Wheelbase Size | 2830 mm | 2650 mm |
| Fuel Consumption Overall | 13.8 L/100km | 8.8 L/100km |
| Fuel Tank Capacity | 92 L | 63 L |
