1978 Mercury Grand Marquis vs. 1999 Opel Omega
To start off, 1999 Opel Omega is newer by 21 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 5 more horse power than 1999 Opel Omega. (134 HP @ 5600 RPM). In normal driving conditions, 1978 Mercury Grand Marquis should accelerate faster than 1999 Opel Omega. With that said, vehicle weight also plays an important factor in acceleration. 1978 Mercury Grand Marquis weights approximately 140 kg more than 1999 Opel Omega. 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, 1978 Mercury Grand Marquis (353 Nm @ 2200 RPM) has 168 more torque (in Nm) than 1999 Opel Omega. (185 Nm @ 4000 RPM). This means 1978 Mercury Grand Marquis will have an easier job in driving up hills or pulling heavy equipment than 1999 Opel Omega.
Compare all specifications:
| 1978 Mercury Grand Marquis | 1999 Opel Omega | |
| Make | Mercury | Opel |
| Model | Grand Marquis | Omega |
| Year Released | 1978 | 1999 |
| Engine Position | Front | Front |
| Engine Size | 5766 cc | 1998 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 139 HP | 134 HP |
| Engine RPM | 3200 RPM | 5600 RPM |
| Torque | 353 Nm | 185 Nm |
| Torque RPM | 2200 RPM | 4000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1710 kg | 1570 kg |
| Vehicle Length | 5400 mm | 4900 mm |
| Vehicle Width | 1980 mm | 1790 mm |
| Vehicle Height | 1390 mm | 1460 mm |
| Wheelbase Size | 2910 mm | 2740 mm |
