2006 Ford Expedition vs. 1978 Mercury Grand Marquis
To start off, 2006 Ford Expedition is newer by 28 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 5,408 cc (8 cylinders), 2006 Ford Expedition is equipped with a bigger engine. In terms of performance, 2006 Ford Expedition (300 HP @ 5000 RPM) has 171 more horse power than 1978 Mercury Grand Marquis. (129 HP @ 3600 RPM). In normal driving conditions, 2006 Ford Expedition should accelerate faster than 1978 Mercury Grand Marquis. With that said, vehicle weight also plays an important factor in acceleration. 2006 Ford Expedition weights approximately 1166 kg more than 1978 Mercury Grand Marquis. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 Ford Expedition 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, 2006 Ford Expedition 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, 2006 Ford Expedition (496 Nm @ 3750 RPM) has 193 more torque (in Nm) than 1978 Mercury Grand Marquis. (303 Nm @ 2600 RPM). This means 2006 Ford Expedition will have an easier job in driving up hills or pulling heavy equipment than 1978 Mercury Grand Marquis.
Compare all specifications:
| 2006 Ford Expedition | 1978 Mercury Grand Marquis | |
| Make | Ford | Mercury |
| Model | Expedition | Grand Marquis |
| Year Released | 2006 | 1978 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5408 cc | 4942 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 300 HP | 129 HP |
| Engine RPM | 5000 RPM | 3600 RPM |
| Torque | 496 Nm | 303 Nm |
| Torque RPM | 3750 RPM | 2600 RPM |
| Engine Bore Size | 90 mm | 101.6 mm |
| Engine Stroke Size | 106 mm | 76.2 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Number of Seats | 9 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 2856 kg | 1690 kg |
| Vehicle Length | 5230 mm | 5400 mm |
| Vehicle Width | 2010 mm | 1980 mm |
| Vehicle Height | 1950 mm | 1390 mm |
| Wheelbase Size | 3030 mm | 2910 mm |
