2006 Audi S4 vs. 2003 BMW X3
To start off, 2006 Audi S4 is newer by 3 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), 2006 Audi S4 is equipped with a bigger engine. In terms of performance, 2006 Audi S4 (340 HP @ 7000 RPM) has 112 more horse power than 2003 BMW X3. (228 HP @ 5900 RPM). In normal driving conditions, 2006 Audi S4 should accelerate faster than 2003 BMW X3. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi S4 weights approximately 44 kg more than 2003 BMW X3. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2003 BMW X3 is four wheel drive (4WD), it will have significant more traction and grip than 2006 Audi S4. In wet, icy, snow, or gravel driving conditions, 2003 BMW X3 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, 2006 Audi S4 (410 Nm @ 3500 RPM) has 110 more torque (in Nm) than 2003 BMW X3. (300 Nm @ 3500 RPM). This means 2006 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 2003 BMW X3.
Compare all specifications:
| 2006 Audi S4 | 2003 BMW X3 | |
| Make | Audi | BMW |
| Model | S4 | X3 |
| Year Released | 2006 | 2003 |
| Body Type | Station Wagon | SUV |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 2979 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 340 HP | 228 HP |
| Engine RPM | 7000 RPM | 5900 RPM |
| Torque | 410 Nm | 300 Nm |
| Torque RPM | 3500 RPM | 3500 RPM |
| Engine Bore Size | 84.5 mm | 84.1 mm |
| Engine Stroke Size | 93 mm | 89.6 mm |
| Acceleration 0-100mph | 5.8 seconds | 8.1 seconds |
| Drive Type | Front | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1884 kg | 1840 kg |
| Vehicle Length | 4590 mm | 4570 mm |
| Vehicle Width | 1790 mm | 1860 mm |
| Vehicle Height | 1420 mm | 1680 mm |
| Wheelbase Size | 2660 mm | 2730 mm |
| Fuel Consumption Highway | 11.2 L/100km | 9.1 L/100km |
| Fuel Consumption City | 15.7 L/100km | 17.4 L/100km |
| Fuel Consumption Overall | 13.8 L/100km | 12.1 L/100km |
| Fuel Tank Capacity | 63 L | 67 L |
