1984 Daihatsu Rocky vs. 1978 Mercury Grand Marquis
To start off, 1984 Daihatsu Rocky is newer by 6 year(s). Which means there will be less support and parts availability for 1978 Mercury Grand Marquis. In addition, the cost of maintenance, including insurance, on 1978 Mercury Grand Marquis would be higher. At 5,766 cc (8 cylinders), 1978 Mercury Grand Marquis is equipped with a bigger engine. In terms of performance, 1978 Mercury Grand Marquis (139 HP @ 3200 RPM) has 52 more horse power than 1984 Daihatsu Rocky. (87 HP @ 3600 RPM) In normal driving conditions, 1978 Mercury Grand Marquis should accelerate faster than 1984 Daihatsu Rocky. With that said, vehicle weight also plays an important factor in acceleration. 1978 Mercury Grand Marquis weights approximately 150 kg more than 1984 Daihatsu Rocky. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1984 Daihatsu Rocky is four wheel drive (4WD), it will have significant more traction and grip than 1978 Mercury Grand Marquis. In wet, icy, snow, or gravel driving conditions, 1984 Daihatsu Rocky will offer significantly more control. 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 (353 Nm @ 2200 RPM) has 142 more torque (in Nm) than 1984 Daihatsu Rocky. (211 Nm @ 2200 RPM). This means 1978 Mercury Grand Marquis will have an easier job in driving up hills or pulling heavy equipment than 1984 Daihatsu Rocky.
Compare all specifications:
| 1984 Daihatsu Rocky | 1978 Mercury Grand Marquis | |
| Make | Daihatsu | Mercury |
| Model | Rocky | Grand Marquis |
| Year Released | 1984 | 1978 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2765 cc | 5766 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 87 HP | 139 HP |
| Engine RPM | 3600 RPM | 3200 RPM |
| Torque | 211 Nm | 353 Nm |
| Torque RPM | 2200 RPM | 2200 RPM |
| Fuel Type | Diesel | Gasoline |
| Drive Type | 4WD | Rear |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1560 kg | 1710 kg |
| Vehicle Length | 4110 mm | 5400 mm |
| Vehicle Width | 1590 mm | 1980 mm |
| Vehicle Height | 1920 mm | 1390 mm |
| Wheelbase Size | 2540 mm | 2910 mm |
