1999 Mercury Grand Marquis vs. 1978 Volvo 66
To start off, 1999 Mercury Grand Marquis is newer by 21 year(s). Which means there will be less support and parts availability for 1978 Volvo 66. In addition, the cost of maintenance, including insurance, on 1978 Volvo 66 would be higher. At 4,604 cc (8 cylinders), 1999 Mercury Grand Marquis is equipped with a bigger engine. In terms of performance, 1999 Mercury Grand Marquis (208 HP @ 4250 RPM) has 152 more horse power than 1978 Volvo 66. (56 HP @ 5200 RPM). In normal driving conditions, 1999 Mercury Grand Marquis should accelerate faster than 1978 Volvo 66. With that said, vehicle weight also plays an important factor in acceleration. 1999 Mercury Grand Marquis weights approximately 1002 kg more than 1978 Volvo 66. 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, 1999 Mercury Grand Marquis (359 Nm) has 265 more torque (in Nm) than 1978 Volvo 66. (94 Nm). This means 1999 Mercury Grand Marquis will have an easier job in driving up hills or pulling heavy equipment than 1978 Volvo 66.
Compare all specifications:
| 1999 Mercury Grand Marquis | 1978 Volvo 66 | |
| Make | Mercury | Volvo |
| Model | Grand Marquis | 66 |
| Year Released | 1999 | 1978 |
| Engine Position | Front | Front |
| Engine Size | 4604 cc | 1289 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 208 HP | 56 HP |
| Engine RPM | 4250 RPM | 5200 RPM |
| Torque | 359 Nm | 94 Nm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Vehicle Weight | 1832 kg | 830 kg |
| Vehicle Length | 5390 mm | 3910 mm |
| Vehicle Width | 2000 mm | 1550 mm |
| Vehicle Height | 1450 mm | 1390 mm |
