2005 Audi A4 vs. 2006 BMW X5
To start off, 2006 BMW X5 is newer by 1 year(s). Which means there will be less support and parts availability for 2005 Audi A4. In addition, the cost of maintenance, including insurance, on 2005 Audi A4 would be higher. At 2,979 cc (6 cylinders), 2006 BMW X5 is equipped with a bigger engine. In terms of performance, 2006 BMW X5 (228 HP @ 3500 RPM) has 90 more horse power than 2005 Audi A4. (138 HP @ 4000 RPM) In normal driving conditions, 2006 BMW X5 should accelerate faster than 2005 Audi A4.
Because 2006 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Audi A4. In wet, icy, snow, or gravel driving conditions, 2006 BMW X5 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 A4 (320 Nm @ 1750 RPM) has 20 more torque (in Nm) than 2006 BMW X5. (300 Nm @ 3500 RPM). This means 2005 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW X5.
Compare all specifications:
| 2005 Audi A4 | 2006 BMW X5 | |
| Make | Audi | BMW |
| Model | A4 | X5 |
| Year Released | 2005 | 2006 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 1984 cc | 2979 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 138 HP | 228 HP |
| Engine RPM | 4000 RPM | 3500 RPM |
| Torque | 320 Nm | 300 Nm |
| Torque RPM | 1750 RPM | 3500 RPM |
| Engine Bore Size | 81 mm | 84 mm |
| Engine Stroke Size | 95.5 mm | 89.6 mm |
| Engine Compression Ratio | 18.0:1 | 10.2:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Length | 4550 mm | 4670 mm |
| Vehicle Width | 1780 mm | 1880 mm |
| Vehicle Height | 1430 mm | 1720 mm |
| Wheelbase Size | 2660 mm | 2830 mm |
| Fuel Tank Capacity | 66 L | 93 L |
