2009 Audi RS4 vs. 2007 BMW 525
To start off, 2009 Audi RS4 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 BMW 525. In addition, the cost of maintenance, including insurance, on 2007 BMW 525 would be higher. At 4,163 cc (8 cylinders), 2009 Audi RS4 is equipped with a bigger engine. In terms of performance, 2009 Audi RS4 (414 HP @ 7800 RPM) has 199 more horse power than 2007 BMW 525. (215 HP @ 6500 RPM). In normal driving conditions, 2009 Audi RS4 should accelerate faster than 2007 BMW 525. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi RS4 weights approximately 165 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.
Because 2009 Audi RS4 is four wheel drive (4WD), it will have significant more traction and grip than 2007 BMW 525. In wet, icy, snow, or gravel driving conditions, 2009 Audi RS4 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, 2009 Audi RS4 (430 Nm @ 5500 RPM) has 179 more torque (in Nm) than 2007 BMW 525. (251 Nm @ 2750 RPM). This means 2009 Audi RS4 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW 525.
Compare all specifications:
| 2009 Audi RS4 | 2007 BMW 525 | |
| Make | Audi | BMW |
| Model | RS4 | 525 |
| Year Released | 2009 | 2007 |
| Body Type | Convertible | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 2497 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 414 HP | 215 HP |
| Engine RPM | 7800 RPM | 6500 RPM |
| Torque | 430 Nm | 251 Nm |
| Torque RPM | 5500 RPM | 2750 RPM |
| Engine Bore Size | 84.5 mm | 78.8 mm |
| Engine Stroke Size | 92.8 mm | 82 mm |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 250 km/hour | 240 km/hour |
| Acceleration 0-100mph | 4.9 seconds | 7.8 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1845 kg | 1680 kg |
| Vehicle Length | 4560 mm | 4850 mm |
| Vehicle Width | 1820 mm | 1850 mm |
| Vehicle Height | 1400 mm | 1500 mm |
| Wheelbase Size | 2660 mm | 2840 mm |
| Fuel Consumption Overall | 14.1 L/100km | 8.9 L/100km |
| Fuel Tank Capacity | 63 L | 70 L |
