2006 Audi RS4 vs. 2007 BMW 525
To start off, 2007 BMW 525 is newer by 1 year(s). Which means there will be less support and parts availability for 2006 Audi RS4. In addition, the cost of maintenance, including insurance, on 2006 Audi RS4 would be higher. At 4,163 cc (8 cylinders), 2006 Audi RS4 is equipped with a bigger engine. In terms of performance, 2006 Audi RS4 (420 HP @ 8250 RPM) has 205 more horse power than 2007 BMW 525. (215 HP @ 6500 RPM). In normal driving conditions, 2006 Audi RS4 should accelerate faster than 2007 BMW 525. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW 525 weights approximately 131 kg more than 2006 Audi RS4.
Because 2006 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, 2006 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, 2006 Audi RS4 (583 Nm @ 5500 RPM) has 332 more torque (in Nm) than 2007 BMW 525. (251 Nm @ 2750 RPM). This means 2006 Audi RS4 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW 525.
Compare all specifications:
| 2006 Audi RS4 | 2007 BMW 525 | |
| Make | Audi | BMW |
| Model | RS4 | 525 |
| Year Released | 2006 | 2007 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 2497 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Horse Power | 420 HP | 215 HP |
| Engine RPM | 8250 RPM | 6500 RPM |
| Torque | 583 Nm | 251 Nm |
| Torque RPM | 5500 RPM | 2750 RPM |
| Top Speed | 245 km/hour | 240 km/hour |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1549 kg | 1680 kg |
| Vehicle Length | 360 mm | 4850 mm |
| Vehicle Height | 360 mm | 1500 mm |
| Wheelbase Size | 360 mm | 2840 mm |
