2005 BMW 525 vs. 2007 BMW 750
To start off, 2007 BMW 750 is newer by 2 year(s). Which means there will be less support and parts availability for 2005 BMW 525. In addition, the cost of maintenance, including insurance, on 2005 BMW 525 would be higher. At 4,797 cc (8 cylinders), 2007 BMW 750 is equipped with a bigger engine. In terms of performance, 2007 BMW 750 (360 HP @ 6300 RPM) has 145 more horse power than 2005 BMW 525. (215 HP @ 6500 RPM) In normal driving conditions, 2007 BMW 750 should accelerate faster than 2005 BMW 525. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW 750 weights approximately 170 kg more than 2005 BMW 525. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 BMW 750 is four wheel drive (4WD), it will have significant more traction and grip than 2005 BMW 525. In wet, icy, snow, or gravel driving conditions, 2007 BMW 750 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 750 (488 Nm @ 3400 RPM) has 238 more torque (in Nm) than 2005 BMW 525. (250 Nm @ 2750 RPM). This means 2007 BMW 750 will have an easier job in driving up hills or pulling heavy equipment than 2005 BMW 525.
Compare all specifications:
| 2005 BMW 525 | 2007 BMW 750 | |
| Make | BMW | BMW |
| Model | 525 | 750 |
| Year Released | 2005 | 2007 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2497 cc | 4797 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 215 HP | 360 HP |
| Engine RPM | 6500 RPM | 6300 RPM |
| Torque | 250 Nm | 488 Nm |
| Torque RPM | 2750 RPM | 3400 RPM |
| Engine Bore Size | 82 mm | 93 mm |
| Engine Stroke Size | 78.8 mm | 88.3 mm |
| Engine Compression Ratio | 11.0:1 | 11.0:1 |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1665 kg | 1835 kg |
| Vehicle Length | 4810 mm | 5050 mm |
| Vehicle Width | 1810 mm | 1910 mm |
| Vehicle Height | 1450 mm | 1500 mm |
| Wheelbase Size | 2730 mm | 3000 mm |
| Fuel Consumption | 8.2 L/100km | 9.4 L/100km |
| Fuel Consumption City | 14.9 L/100km | 13.8 L/100km |
| Fuel Consumption Overall | 10.7 L/100km | 11.8 L/100km |
| Fuel Tank Capacity | 70 L | 88 L |
