2009 BMW 525 vs. 2007 BMW Convertible
To start off, 2009 BMW 525 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 BMW Convertible. In addition, the cost of maintenance, including insurance, on 2007 BMW Convertible would be higher. At 4,799 cc (8 cylinders), 2007 BMW Convertible is equipped with a bigger engine. In terms of performance, 2007 BMW Convertible (362 HP @ 6300 RPM) has 147 more horse power than 2009 BMW 525. (215 HP @ 6500 RPM) In normal driving conditions, 2007 BMW Convertible should accelerate faster than 2009 BMW 525. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW Convertible weights approximately 350 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.
Let's talk about torque, 2007 BMW Convertible (490 Nm @ 3400 RPM) has 240 more torque (in Nm) than 2009 BMW 525. (250 Nm @ 2900 RPM). This means 2007 BMW Convertible will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW 525.
Compare all specifications:
| 2009 BMW 525 | 2007 BMW Convertible | |
| Make | BMW | BMW |
| Model | 525 | Convertible |
| Year Released | 2009 | 2007 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2497 cc | 4799 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 215 HP | 362 HP |
| Engine RPM | 6500 RPM | 6300 RPM |
| Torque | 250 Nm | 490 Nm |
| Torque RPM | 2900 RPM | 3400 RPM |
| Engine Compression Ratio | 11.0:1 | 10.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Acceleration 0-100mph | 7.9 seconds | 5.7 seconds |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1500 kg | 1850 kg |
| Vehicle Length | 4850 mm | 4830 mm |
| Vehicle Width | 1470 mm | 1380 mm |
| Vehicle Height | 1850 mm | 1860 mm |
| Wheelbase Size | 2890 mm | 2790 mm |
| Fuel Tank Capacity | 70 L | 70 L |
