1978 BMW 628 vs. 1985 Mercury Grand Marquis
To start off, 1985 Mercury Grand Marquis is newer by 7 year(s). Which means there will be less support and parts availability for 1978 BMW 628. In addition, the cost of maintenance, including insurance, on 1978 BMW 628 would be higher. At 4,940 cc (8 cylinders), 1985 Mercury Grand Marquis is equipped with a bigger engine. In terms of performance, 1978 BMW 628 (185 HP @ 5800 RPM) has 37 more horse power than 1985 Mercury Grand Marquis. (148 HP @ 3200 RPM). In normal driving conditions, 1978 BMW 628 should accelerate faster than 1985 Mercury Grand Marquis.
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, 1985 Mercury Grand Marquis (366 Nm @ 2000 RPM) has 106 more torque (in Nm) than 1978 BMW 628. (260 Nm @ 4000 RPM). This means 1985 Mercury Grand Marquis will have an easier job in driving up hills or pulling heavy equipment than 1978 BMW 628.
Compare all specifications:
| 1978 BMW 628 | 1985 Mercury Grand Marquis | |
| Make | BMW | Mercury |
| Model | 628 | Grand Marquis |
| Year Released | 1978 | 1985 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2997 cc | 4940 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 185 HP | 148 HP |
| Engine RPM | 5800 RPM | 3200 RPM |
| Torque | 260 Nm | 366 Nm |
| Torque RPM | 4000 RPM | 2000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Length | 4760 mm | 5400 mm |
| Vehicle Width | 1760 mm | 1980 mm |
| Vehicle Height | 1390 mm | 1390 mm |
| Wheelbase Size | 2640 mm | 2920 mm |
| Fuel Tank Capacity | 70 L | 90 L |
