2009 BMW 523 vs. 2006 BMW 525
To start off, 2009 BMW 523 is newer by 3 year(s). Which means there will be less support and parts availability for 2006 BMW 525. In addition, the cost of maintenance, including insurance, on 2006 BMW 525 would be higher. Both 2009 BMW 523 and 2006 BMW 525 are equipped with a 2,497 cc engine. In terms of performance, 2006 BMW 525 (215 HP @ 6500 RPM) has 40 more horse power than 2009 BMW 523. (175 HP @ 5800 RPM) In normal driving conditions, 2006 BMW 525 should accelerate faster than 2009 BMW 523. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 525 weights approximately 115 kg more than 2009 BMW 523. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front 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 BMW 525 (251 Nm @ 2750 RPM) has 21 more torque (in Nm) than 2009 BMW 523. (230 Nm @ 3500 RPM). This means 2006 BMW 525 will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW 523.
Compare all specifications:
| 2009 BMW 523 | 2006 BMW 525 | |
| Make | BMW | BMW |
| Model | 523 | 525 |
| Year Released | 2009 | 2006 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 2497 cc | 2497 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 175 HP | 215 HP |
| Engine RPM | 5800 RPM | 6500 RPM |
| Torque | 230 Nm | 251 Nm |
| Torque RPM | 3500 RPM | 2750 RPM |
| Engine Bore Size | 82.1 mm | 78.8 mm |
| Engine Stroke Size | 78.8 mm | 82 mm |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Acceleration 0-100mph | 8.5 seconds | 7.8 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1565 kg | 1680 kg |
| Vehicle Length | 4850 mm | 4850 mm |
| Vehicle Width | 1850 mm | 1850 mm |
| Vehicle Height | 1470 mm | 1500 mm |
| Wheelbase Size | 2890 mm | 2840 mm |
| Fuel Consumption Overall | 8.5 L/100km | 8.9 L/100km |
| Fuel Tank Capacity | 70 L | 70 L |
