2009 BMW 323 vs. 2007 BMW 525
To start off, 2009 BMW 323 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. Both 2009 BMW 323 and 2007 BMW 525 are equipped with a 2,497 cc engine. In terms of performance, 2007 BMW 525 (215 HP @ 6500 RPM) has 40 more horse power than 2009 BMW 323. (175 HP @ 5800 RPM) In normal driving conditions, 2007 BMW 525 should accelerate faster than 2009 BMW 323.
Because 2007 BMW 525 is four wheel drive (4WD), it will have significant more traction and grip than 2009 BMW 323. In wet, icy, snow, or gravel driving conditions, 2007 BMW 525 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, 2007 BMW 525 (250 Nm @ 2750 RPM) has 20 more torque (in Nm) than 2009 BMW 323. (230 Nm @ 3500 RPM). This means 2007 BMW 525 will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW 323. 2007 BMW 525 has automatic transmission and 2009 BMW 323 has manual transmission. 2009 BMW 323 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 BMW 525 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 BMW 323 | 2007 BMW 525 | |
| Make | BMW | BMW |
| Model | 323 | 525 |
| Year Released | 2009 | 2007 |
| Body Type | Sedan | Sedan |
| 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 | 250 Nm |
| Torque RPM | 3500 RPM | 2750 RPM |
| Engine Bore Size | 78.8 mm | 78.8 mm |
| Engine Stroke Size | 82 mm | 82 mm |
| Engine Compression Ratio | 11.0:1 | 11.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 4530 mm | 4850 mm |
| Vehicle Width | 1430 mm | 1850 mm |
| Vehicle Height | 1820 mm | 1470 mm |
| Wheelbase Size | 2770 mm | 2890 mm |
| Fuel Consumption Overall | 7.5 L/100km | 9.6 L/100km |
| Fuel Tank Capacity | 60 L | 70 L |
