1975 BMW 315 vs. 2007 Mercury Mariner
To start off, 2007 Mercury Mariner is newer by 32 year(s). Which means there will be less support and parts availability for 1975 BMW 315. In addition, the cost of maintenance, including insurance, on 1975 BMW 315 would be higher. At 2,299 cc (4 cylinders), 2007 Mercury Mariner is equipped with a bigger engine. In terms of performance, 2007 Mercury Mariner (153 HP @ 5800 RPM) has 78 more horse power than 1975 BMW 315. (75 HP @ 5800 RPM) In normal driving conditions, 2007 Mercury Mariner should accelerate faster than 1975 BMW 315. With that said, vehicle weight also plays an important factor in acceleration. 2007 Mercury Mariner weights approximately 915 kg more than 1975 BMW 315. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1975 BMW 315 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 1975 BMW 315. 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, 2007 Mercury Mariner (206 Nm @ 4250 RPM) has 96 more torque (in Nm) than 1975 BMW 315. (110 Nm @ 3200 RPM). This means 2007 Mercury Mariner will have an easier job in driving up hills or pulling heavy equipment than 1975 BMW 315.
Compare all specifications:
| 1975 BMW 315 | 2007 Mercury Mariner | |
| Make | BMW | Mercury |
| Model | 315 | Mariner |
| Year Released | 1975 | 2007 |
| Body Type | Coupe | SUV |
| Engine Position | Front | Front |
| Engine Size | 1574 cc | 2299 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 75 HP | 153 HP |
| Engine RPM | 5800 RPM | 5800 RPM |
| Torque | 110 Nm | 206 Nm |
| Torque RPM | 3200 RPM | 4250 RPM |
| Engine Bore Size | 84 mm | 87.4 mm |
| Engine Stroke Size | 71 mm | 94 mm |
| Engine Compression Ratio | 9.5:1 | 9.7:1 |
| Drive Type | Rear | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1010 kg | 1925 kg |
| Vehicle Length | 4360 mm | 4430 mm |
| Vehicle Width | 1620 mm | 1790 mm |
| Vehicle Height | 1390 mm | 1730 mm |
| Wheelbase Size | 2510 mm | 2630 mm |
