2009 Audi A4 vs. 2003 BMW X3
To start off, 2009 Audi A4 is newer by 6 year(s). Which means there will be less support and parts availability for 2003 BMW X3. In addition, the cost of maintenance, including insurance, on 2003 BMW X3 would be higher. At 2,976 cc (6 cylinders), 2009 Audi A4 is equipped with a bigger engine. In terms of performance, 2009 Audi A4 (217 HP @ 6300 RPM) has 32 more horse power than 2003 BMW X3. (185 HP @ 6000 RPM). In normal driving conditions, 2009 Audi A4 should accelerate faster than 2003 BMW X3. With that said, vehicle weight also plays an important factor in acceleration. 2003 BMW X3 weights approximately 165 kg more than 2009 Audi A4.
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, 2009 Audi A4 (300 Nm @ 3200 RPM) has 55 more torque (in Nm) than 2003 BMW X3. (245 Nm @ 3500 RPM). This means 2009 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2003 BMW X3. 2003 BMW X3 has automatic transmission and 2009 Audi A4 has manual transmission. 2009 Audi A4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 BMW X3 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Audi A4 | 2003 BMW X3 | |
| Make | Audi | BMW |
| Model | A4 | X3 |
| Year Released | 2009 | 2003 |
| Body Type | Convertible | SUV |
| Engine Position | Front | Front |
| Engine Size | 2976 cc | 2492 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 217 HP | 185 HP |
| Engine RPM | 6300 RPM | 6000 RPM |
| Torque | 300 Nm | 245 Nm |
| Torque RPM | 3200 RPM | 3500 RPM |
| Engine Bore Size | 82.5 mm | 84 mm |
| Engine Stroke Size | 92.8 mm | 75 mm |
| Engine Compression Ratio | 11.0:1 | 10.5:1 |
| Drive Type | 4WD | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1675 kg | 1840 kg |
| Vehicle Length | 4580 mm | 4570 mm |
| Vehicle Width | 1780 mm | 1860 mm |
| Vehicle Height | 1400 mm | 1680 mm |
| Wheelbase Size | 2660 mm | 2800 mm |
| Fuel Tank Capacity | 66 L | 67 L |
