1975 BMW 315 vs. 1987 Mercury Grand Marquis
To start off, 1987 Mercury Grand Marquis is newer by 12 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 4,942 cc (8 cylinders), 1987 Mercury Grand Marquis is equipped with a bigger engine. In terms of performance, 1987 Mercury Grand Marquis (148 HP @ 3200 RPM) has 73 more horse power than 1975 BMW 315. (75 HP @ 5800 RPM) In normal driving conditions, 1987 Mercury Grand Marquis should accelerate faster than 1975 BMW 315. With that said, vehicle weight also plays an important factor in acceleration. 1987 Mercury Grand Marquis weights approximately 740 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.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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, 1987 Mercury Grand Marquis (366 Nm @ 2000 RPM) has 256 more torque (in Nm) than 1975 BMW 315. (110 Nm @ 3200 RPM). This means 1987 Mercury Grand Marquis will have an easier job in driving up hills or pulling heavy equipment than 1975 BMW 315.
Compare all specifications:
| 1975 BMW 315 | 1987 Mercury Grand Marquis | |
| Make | BMW | Mercury |
| Model | 315 | Grand Marquis |
| Year Released | 1975 | 1987 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1574 cc | 4942 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 75 HP | 148 HP |
| Engine RPM | 5800 RPM | 3200 RPM |
| Torque | 110 Nm | 366 Nm |
| Torque RPM | 3200 RPM | 2000 RPM |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1010 kg | 1750 kg |
| Vehicle Length | 4360 mm | 5400 mm |
| Vehicle Width | 1620 mm | 1980 mm |
| Vehicle Height | 1390 mm | 1390 mm |
| Wheelbase Size | 2510 mm | 2920 mm |
