2009 Audi R8 vs. 2003 BMW X3
To start off, 2009 Audi R8 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 4,163 cc (8 cylinders), 2009 Audi R8 is equipped with a bigger engine. In terms of performance, 2009 Audi R8 (414 HP @ 7800 RPM) has 229 more horse power than 2003 BMW X3. (185 HP @ 6000 RPM). In normal driving conditions, 2009 Audi R8 should accelerate faster than 2003 BMW X3. With that said, vehicle weight also plays an important factor in acceleration. 2003 BMW X3 weights approximately 275 kg more than 2009 Audi R8.
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 R8 (430 Nm @ 4500 RPM) has 185 more torque (in Nm) than 2003 BMW X3. (245 Nm @ 3500 RPM). This means 2009 Audi R8 will have an easier job in driving up hills or pulling heavy equipment than 2003 BMW X3.
Compare all specifications:
| 2009 Audi R8 | 2003 BMW X3 | |
| Make | Audi | BMW |
| Model | R8 | X3 |
| Year Released | 2009 | 2003 |
| Body Type | Coupe | SUV |
| Engine Position | Middle | Front |
| Engine Size | 4163 cc | 2492 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 414 HP | 185 HP |
| Engine RPM | 7800 RPM | 6000 RPM |
| Torque | 430 Nm | 245 Nm |
| Torque RPM | 4500 RPM | 3500 RPM |
| Engine Bore Size | 84.5 mm | 84 mm |
| Engine Stroke Size | 92.8 mm | 75 mm |
| Engine Compression Ratio | 12.5:1 | 10.5:1 |
| Drive Type | AWD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1565 kg | 1840 kg |
| Vehicle Length | 4440 mm | 4570 mm |
| Vehicle Width | 1910 mm | 1860 mm |
| Vehicle Height | 1260 mm | 1680 mm |
| Wheelbase Size | 2660 mm | 2800 mm |
| Fuel Tank Capacity | 75 L | 67 L |
