2009 BMW 525 vs. 2011 BMW 125
To start off, 2011 BMW 125 is newer by 2 year(s). Which means there will be less support and parts availability for 2009 BMW 525. In addition, the cost of maintenance, including insurance, on 2009 BMW 525 would be higher. At 2,996 cc (6 cylinders), 2011 BMW 125 is equipped with a bigger engine. In terms of performance, 2011 BMW 125 (216 HP @ 6700 RPM) has 1 more horse power than 2009 BMW 525. (215 HP @ 6500 RPM) In normal driving conditions, 2011 BMW 125 should accelerate faster than 2009 BMW 525. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW 525 weights approximately 205 kg more than 2011 BMW 125.
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, 2011 BMW 125 (270 Nm @ 2500 RPM) has 19 more torque (in Nm) than 2009 BMW 525. (251 Nm @ 2900 RPM). This means 2011 BMW 125 will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW 525.
Compare all specifications:
| 2009 BMW 525 | 2011 BMW 125 | |
| Make | BMW | BMW |
| Model | 525 | 125 |
| Year Released | 2009 | 2011 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2497 cc | 2996 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 215 HP | 216 HP |
| Engine RPM | 6500 RPM | 6700 RPM |
| Torque | 251 Nm | 270 Nm |
| Torque RPM | 2900 RPM | 2500 RPM |
| Engine Bore Size | 82 mm | 85 mm |
| Engine Stroke Size | 78.8 mm | 88 mm |
| Fuel Type | Gasoline | Gasoline - Premium |
| Acceleration 0-100mph | 7.5 seconds | 6.8 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1525 kg | 1320 kg |
| Vehicle Length | 4850 mm | 4370 mm |
| Vehicle Width | 1470 mm | 1420 mm |
| Vehicle Height | 1850 mm | 1760 mm |
| Wheelbase Size | 2890 mm | 2670 mm |
| Fuel Consumption Overall | 6.5 L/100km | 8.1 L/100km |
| Fuel Tank Capacity | 70 L | 53 L |
