2007 BMW 525 vs. 2009 Mercury Mariner
To start off, 2009 Mercury Mariner 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. At 2,496 cc (6 cylinders), 2007 BMW 525 is equipped with a bigger engine. In terms of performance, 2007 BMW 525 (215 HP @ 6500 RPM) has 43 more horse power than 2009 Mercury Mariner. (172 HP @ 6000 RPM). In normal driving conditions, 2007 BMW 525 should accelerate faster than 2009 Mercury Mariner. With that said, vehicle weight also plays an important factor in acceleration. 2009 Mercury Mariner weights approximately 430 kg more than 2007 BMW 525.
Because 2007 BMW 525 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2007 BMW 525. However, in wet, icy, snow, or gravel driving conditions, 2009 Mercury Mariner, being front wheel drive (FWD), will offer much better control with better grip. 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 @ 2900 RPM) has 18 more torque (in Nm) than 2009 Mercury Mariner. (232 Nm @ 4500 RPM). This means 2007 BMW 525 will have an easier job in driving up hills or pulling heavy equipment than 2009 Mercury Mariner.
Compare all specifications:
| 2007 BMW 525 | 2009 Mercury Mariner | |
| Make | BMW | Mercury |
| Model | 525 | Mariner |
| Year Released | 2007 | 2009 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 2496 cc | 2488 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 215 HP | 172 HP |
| Engine RPM | 6500 RPM | 6000 RPM |
| Torque | 250 Nm | 232 Nm |
| Torque RPM | 2900 RPM | 4500 RPM |
| Engine Bore Size | 82 mm | 90.2 mm |
| Engine Stroke Size | 78.8 mm | 94 mm |
| Engine Compression Ratio | 11.0:1 | 9.7:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1495 kg | 1925 kg |
| Vehicle Length | 4850 mm | 4460 mm |
| Vehicle Width | 1470 mm | 1810 mm |
| Vehicle Height | 1850 mm | 1780 mm |
| Wheelbase Size | 2890 mm | 2630 mm |
| Fuel Consumption Overall | 7 L/100km | 10.2 L/100km |
| Fuel Tank Capacity | 70 L | 62 L |
