2005 Audi S4 vs. 2009 BMW X5
To start off, 2009 BMW X5 is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Audi S4. In addition, the cost of maintenance, including insurance, on 2005 Audi S4 would be higher. At 4,163 cc (8 cylinders), 2005 Audi S4 is equipped with a bigger engine. In terms of performance, 2005 Audi S4 (340 HP @ 4000 RPM) has 80 more horse power than 2009 BMW X5. (260 HP @ 6600 RPM). In normal driving conditions, 2005 Audi S4 should accelerate faster than 2009 BMW X5. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi S4 weights approximately 220 kg more than 2009 BMW X5. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2005 Audi S4 (410 Nm) has 105 more torque (in Nm) than 2009 BMW X5. (305 Nm). This means 2005 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW X5.
Compare all specifications:
| 2005 Audi S4 | 2009 BMW X5 | |
| Make | Audi | BMW |
| Model | S4 | X5 |
| Year Released | 2005 | 2009 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 2996 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 340 HP | 260 HP |
| Engine RPM | 4000 RPM | 6600 RPM |
| Torque | 410 Nm | 305 Nm |
| Engine Bore Size | 85 mm | 85.1 mm |
| Engine Stroke Size | 93 mm | 88 mm |
| Engine Compression Ratio | 11.0:1 | 10.7:1 |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1770 kg | 1550 kg |
| Vehicle Length | 4550 mm | 4860 mm |
| Vehicle Width | 1770 mm | 1940 mm |
| Vehicle Height | 1430 mm | 1770 mm |
| Wheelbase Size | 2770 mm | 2940 mm |
| Fuel Consumption | 9.8 L/100km | 11.2 L/100km |
| Fuel Consumption City | 13.1 L/100km | 15.7 L/100km |
| Fuel Consumption Overall | 11.8 L/100km | 13.1 L/100km |
| Fuel Tank Capacity | 66 L | 85 L |
