2003 BMW X3 vs. 2007 Mercury Mariner
To start off, 2007 Mercury Mariner is newer by 4 year(s). Which means there will be less support and parts availability for 2003 BMW X3. In addition, the cost of maintenance, including insurance, on 2003 BMW X3 would be higher. At 2,995 cc (6 cylinders), 2003 BMW X3 is equipped with a bigger engine. In terms of performance, 2003 BMW X3 (201 HP @ 4000 RPM) has 48 more horse power than 2007 Mercury Mariner. (153 HP @ 5800 RPM). In normal driving conditions, 2003 BMW X3 should accelerate faster than 2007 Mercury Mariner. With that said, vehicle weight also plays an important factor in acceleration. 2003 BMW X3 weights approximately 5 kg more than 2007 Mercury Mariner. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2003 BMW X3 is four wheel drive (4WD), it will have significant more traction and grip than 2007 Mercury Mariner. In wet, icy, snow, or gravel driving conditions, 2003 BMW X3 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, 2003 BMW X3 (410 Nm @ 1500 RPM) has 204 more torque (in Nm) than 2007 Mercury Mariner. (206 Nm @ 4250 RPM). This means 2003 BMW X3 will have an easier job in driving up hills or pulling heavy equipment than 2007 Mercury Mariner.
Compare all specifications:
| 2003 BMW X3 | 2007 Mercury Mariner | |
| Make | BMW | Mercury |
| Model | X3 | Mariner |
| Year Released | 2003 | 2007 |
| Body Type | SUV | SUV |
| Engine Position | Front | Front |
| Engine Size | 2995 cc | 2299 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 201 HP | 153 HP |
| Engine RPM | 4000 RPM | 5800 RPM |
| Torque | 410 Nm | 206 Nm |
| Torque RPM | 1500 RPM | 4250 RPM |
| Engine Bore Size | 84 mm | 87.4 mm |
| Engine Stroke Size | 90 mm | 94 mm |
| Engine Compression Ratio | 17.0:1 | 9.7:1 |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1930 kg | 1925 kg |
| Vehicle Length | 4570 mm | 4430 mm |
| Vehicle Width | 1860 mm | 1790 mm |
| Vehicle Height | 1680 mm | 1730 mm |
| Wheelbase Size | 2730 mm | 2630 mm |
| Fuel Consumption | 7.3 L/100km | 9.8 L/100km |
| Fuel Consumption City | 12.1 L/100km | 11.8 L/100km |
| Fuel Consumption Overall | 9.1 L/100km | 10.7 L/100km |
| Fuel Tank Capacity | 67 L | 62 L |
