2005 Audi A4 vs. 2007 BMW X3
To start off, 2007 BMW X3 is newer by 2 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 2,993 cc (6 cylinders), 2007 BMW X3 is equipped with a bigger engine. In terms of performance, 2007 BMW X3 (283 HP @ 4400 RPM) has 155 more horse power than 2005 Audi A4. (128 HP @ 4000 RPM) In normal driving conditions, 2007 BMW X3 should accelerate faster than 2005 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW X3 weights approximately 465 kg more than 2005 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, 2007 BMW X3 (580 Nm @ 1750 RPM) has 270 more torque (in Nm) than 2005 Audi A4. (310 Nm @ 1900 RPM). This means 2007 BMW X3 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A4. 2007 BMW X3 has automatic transmission and 2005 Audi A4 has manual transmission. 2005 Audi A4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 BMW X3 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Audi A4 | 2007 BMW X3 | |
| Make | Audi | BMW |
| Model | A4 | X3 |
| Year Released | 2005 | 2007 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 1896 cc | 2993 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 128 HP | 283 HP |
| Engine RPM | 4000 RPM | 4400 RPM |
| Torque | 310 Nm | 580 Nm |
| Torque RPM | 1900 RPM | 1750 RPM |
| Engine Bore Size | 79.5 mm | 84 mm |
| Engine Stroke Size | 95.5 mm | 88 mm |
| Engine Compression Ratio | 19.0:1 | 17.0:1 |
| Fuel Type | Diesel | Diesel |
| Top Speed | 205 km/hour | 240 km/hour |
| Acceleration 0-100mph | 10.1 seconds | 6.6 seconds |
| Drive Type | 4WD | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1485 kg | 1950 kg |
| Vehicle Length | 4550 mm | 4570 mm |
| Vehicle Width | 1780 mm | 1860 mm |
| Vehicle Height | 1430 mm | 1680 mm |
| Wheelbase Size | 2580 mm | 2800 mm |
| Fuel Consumption Overall | 6.6 L/100km | 8.7 L/100km |
| Fuel Tank Capacity | 66 L | 67 L |
