2008 Audi S4 vs. 2003 BMW X3
To start off, 2008 Audi S4 is newer by 5 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 4,161 cc (8 cylinders), 2008 Audi S4 is equipped with a bigger engine. In terms of performance, 2008 Audi S4 (340 HP @ 7000 RPM) has 139 more horse power than 2003 BMW X3. (201 HP @ 4000 RPM). In normal driving conditions, 2008 Audi S4 should accelerate faster than 2003 BMW X3. With that said, vehicle weight also plays an important factor in acceleration. 2003 BMW X3 weights approximately 225 kg more than 2008 Audi S4.
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, both vehicles can yield 410 Nm of torque. So under normal driving conditions, the ability to climb up hills and pull heavy equipment should be relatively similar for both vehicles.
Compare all specifications:
| 2008 Audi S4 | 2003 BMW X3 | |
| Make | Audi | BMW |
| Model | S4 | X3 |
| Year Released | 2008 | 2003 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 4161 cc | 2995 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 340 HP | 201 HP |
| Engine RPM | 7000 RPM | 4000 RPM |
| Torque | 410 Nm | 410 Nm |
| Torque RPM | 3500 RPM | 1500 RPM |
| Engine Bore Size | 84.5 mm | 84 mm |
| Engine Stroke Size | 92.8 mm | 90 mm |
| Top Speed | 250 km/hour | 215 km/hour |
| Acceleration 0-100mph | 5.8 seconds | 8.2 seconds |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1705 kg | 1930 kg |
| Vehicle Length | 4590 mm | 4570 mm |
| Vehicle Width | 1780 mm | 1860 mm |
| Vehicle Height | 1430 mm | 1680 mm |
| Wheelbase Size | 2650 mm | 2730 mm |
| Fuel Consumption Overall | 12.3 L/100km | 9.1 L/100km |
| Fuel Tank Capacity | 63 L | 67 L |
