2006 Audi RS4 vs. 2009 BMW 525
To start off, 2009 BMW 525 is newer by 3 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 2009 BMW 525. (215 HP @ 6500 RPM). In normal driving conditions, 2006 Audi RS4 should accelerate faster than 2009 BMW 525. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi RS4 weights approximately 24 kg more than 2009 BMW 525. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or rear wheel drive vehicles. 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 333 more torque (in Nm) than 2009 BMW 525. (250 Nm @ 2750 RPM). This means 2006 Audi RS4 will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW 525.
Compare all specifications:
| 2006 Audi RS4 | 2009 BMW 525 | |
| Make | Audi | BMW |
| Model | RS4 | 525 |
| Year Released | 2006 | 2009 |
| 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 | 250 Nm |
| Torque RPM | 5500 RPM | 2750 RPM |
| Drive Type | 4WD | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1549 kg | 1525 kg |
| Vehicle Length | 360 mm | 4850 mm |
| Vehicle Height | 360 mm | 1500 mm |
| Wheelbase Size | 360 mm | 2840 mm |
