1977 BMW 528 vs. 1978 Mercury Grand Marquis
To start off, 1978 Mercury Grand Marquis is newer by 1 year(s). Which means there will be less support and parts availability for 1977 BMW 528. In addition, the cost of maintenance, including insurance, on 1977 BMW 528 would be higher. At 4,942 cc (8 cylinders), 1978 Mercury Grand Marquis is equipped with a bigger engine. In terms of performance, 1977 BMW 528 (178 HP @ 5800 RPM) has 49 more horse power than 1978 Mercury Grand Marquis. (129 HP @ 3600 RPM). In normal driving conditions, 1977 BMW 528 should accelerate faster than 1978 Mercury Grand Marquis. With that said, vehicle weight also plays an important factor in acceleration. 1978 Mercury Grand Marquis weights approximately 274 kg more than 1977 BMW 528.
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, 1978 Mercury Grand Marquis (303 Nm @ 2600 RPM) has 69 more torque (in Nm) than 1977 BMW 528. (234 Nm @ 4300 RPM). This means 1978 Mercury Grand Marquis will have an easier job in driving up hills or pulling heavy equipment than 1977 BMW 528.
Compare all specifications:
| 1977 BMW 528 | 1978 Mercury Grand Marquis | |
| Make | BMW | Mercury |
| Model | 528 | Grand Marquis |
| Year Released | 1977 | 1978 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2788 cc | 4942 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 178 HP | 129 HP |
| Engine RPM | 5800 RPM | 3600 RPM |
| Torque | 234 Nm | 303 Nm |
| Torque RPM | 4300 RPM | 2600 RPM |
| Engine Bore Size | 86 mm | 101.6 mm |
| Engine Stroke Size | 80 mm | 76.2 mm |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1416 kg | 1690 kg |
| Vehicle Length | 4620 mm | 5400 mm |
| Vehicle Width | 1700 mm | 1980 mm |
| Vehicle Height | 1430 mm | 1390 mm |
| Wheelbase Size | 2640 mm | 2910 mm |
