1984 BMW 725 vs. 2007 Mercury Mariner
To start off, 2007 Mercury Mariner is newer by 23 year(s). Which means there will be less support and parts availability for 1984 BMW 725. In addition, the cost of maintenance, including insurance, on 1984 BMW 725 would be higher. At 2,495 cc (6 cylinders), 1984 BMW 725 is equipped with a bigger engine. In terms of performance, 2007 Mercury Mariner (153 HP @ 5800 RPM) has 5 more horse power than 1984 BMW 725. (148 HP @ 5500 RPM) In normal driving conditions, 2007 Mercury Mariner should accelerate faster than 1984 BMW 725.
Because 1984 BMW 725 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 1984 BMW 725. However, in wet, icy, snow, or gravel driving conditions, 2007 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, 1984 BMW 725 (215 Nm @ 4000 RPM) has 9 more torque (in Nm) than 2007 Mercury Mariner. (206 Nm @ 4250 RPM). This means 1984 BMW 725 will have an easier job in driving up hills or pulling heavy equipment than 2007 Mercury Mariner.
Compare all specifications:
| 1984 BMW 725 | 2007 Mercury Mariner | |
| Make | BMW | Mercury |
| Model | 725 | Mariner |
| Year Released | 1984 | 2007 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 2495 cc | 2299 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 148 HP | 153 HP |
| Engine RPM | 5500 RPM | 5800 RPM |
| Torque | 215 Nm | 206 Nm |
| Torque RPM | 4000 RPM | 4250 RPM |
| Engine Bore Size | 86 mm | 87.4 mm |
| Engine Stroke Size | 71.6 mm | 94 mm |
| Engine Compression Ratio | 9.6:1 | 9.7:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 4870 mm | 4430 mm |
| Vehicle Width | 1810 mm | 1790 mm |
| Vehicle Height | 1440 mm | 1730 mm |
| Wheelbase Size | 2810 mm | 2630 mm |
