2005 Audi S4 vs. 2007 BMW 525
To start off, 2007 BMW 525 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 4,172 cc (8 cylinders), 2005 Audi S4 is equipped with a bigger engine. In terms of performance, 2005 Audi S4 (340 HP @ 4000 RPM) has 125 more horse power than 2007 BMW 525. (215 HP @ 6500 RPM). In normal driving conditions, 2005 Audi S4 should accelerate faster than 2007 BMW 525. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi S4 weights approximately 290 kg more than 2007 BMW 525. 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 160 more torque (in Nm) than 2007 BMW 525. (250 Nm). This means 2005 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW 525.
Compare all specifications:
| 2005 Audi S4 | 2007 BMW 525 | |
| Make | Audi | BMW |
| Model | S4 | 525 |
| Year Released | 2005 | 2007 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4172 cc | 2496 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 340 HP | 215 HP |
| Engine RPM | 4000 RPM | 6500 RPM |
| Torque | 410 Nm | 250 Nm |
| Engine Bore Size | 85 mm | 82 mm |
| Engine Stroke Size | 93 mm | 78.8 mm |
| Engine Compression Ratio | 11.0:1 | 11.0:1 |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1785 kg | 1495 kg |
| Vehicle Length | 4550 mm | 4850 mm |
| Vehicle Width | 1770 mm | 1470 mm |
| Vehicle Height | 1430 mm | 1850 mm |
| Wheelbase Size | 2470 mm | 2890 mm |
| Fuel Consumption Overall | 13.8 L/100km | 7 L/100km |
| Fuel Tank Capacity | 66 L | 70 L |
