2005 Audi S4 vs. 2007 BMW X5
To start off, 2007 BMW X5 is newer by 2 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 4,798 cc (8 cylinders), 2007 BMW X5 is equipped with a bigger engine. In terms of performance, 2007 BMW X5 (342 HP @ 5700 RPM) has 2 more horse power than 2005 Audi S4. (340 HP @ 4000 RPM) In normal driving conditions, 2007 BMW X5 should accelerate faster than 2005 Audi S4. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW X5 weights approximately 415 kg more than 2005 Audi S4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2007 BMW X5 (480 Nm) has 70 more torque (in Nm) than 2005 Audi S4. (410 Nm). This means 2007 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi S4.
Compare all specifications:
| 2005 Audi S4 | 2007 BMW X5 | |
| Make | Audi | BMW |
| Model | S4 | X5 |
| Year Released | 2005 | 2007 |
| Body Type | Station Wagon | SUV |
| Engine Position | Front | Front |
| Engine Size | 4172 cc | 4798 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 340 HP | 342 HP |
| Engine RPM | 4000 RPM | 5700 RPM |
| Torque | 410 Nm | 480 Nm |
| Engine Bore Size | 85 mm | 88.3 mm |
| Engine Stroke Size | 93 mm | 93 mm |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1785 kg | 2200 kg |
| Vehicle Length | 4550 mm | 4670 mm |
| Vehicle Width | 1770 mm | 1930 mm |
| Vehicle Height | 1430 mm | 1710 mm |
| Wheelbase Size | 2470 mm | 2830 mm |
| Fuel Consumption Overall | 13.8 L/100km | 13.5 L/100km |
| Fuel Tank Capacity | 66 L | 93 L |
