1987 Mercury Grand Marquis vs. 1981 Tatra T613
To start off, 1987 Mercury Grand Marquis is newer by 6 year(s). Which means there will be less support and parts availability for 1981 Tatra T613. In addition, the cost of maintenance, including insurance, on 1981 Tatra T613 would be higher. At 4,942 cc (8 cylinders), 1987 Mercury Grand Marquis is equipped with a bigger engine. In terms of performance, 1981 Tatra T613 (167 HP @ 5600 RPM) has 19 more horse power than 1987 Mercury Grand Marquis. (148 HP @ 3200 RPM) In normal driving conditions, 1981 Tatra T613 should accelerate faster than 1987 Mercury Grand Marquis. With that said, vehicle weight also plays an important factor in acceleration. 1987 Mercury Grand Marquis weights approximately 60 kg more than 1981 Tatra T613.
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, 1987 Mercury Grand Marquis (366 Nm @ 2000 RPM) has 96 more torque (in Nm) than 1981 Tatra T613. (270 Nm @ 3300 RPM). This means 1987 Mercury Grand Marquis will have an easier job in driving up hills or pulling heavy equipment than 1981 Tatra T613.
Compare all specifications:
| 1987 Mercury Grand Marquis | 1981 Tatra T613 | |
| Make | Mercury | Tatra |
| Model | Grand Marquis | T613 |
| Year Released | 1987 | 1981 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Rear |
| Engine Size | 4942 cc | 3495 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 148 HP | 167 HP |
| Engine RPM | 3200 RPM | 5600 RPM |
| Torque | 366 Nm | 270 Nm |
| Torque RPM | 2000 RPM | 3300 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1750 kg | 1690 kg |
| Vehicle Length | 5400 mm | 5030 mm |
| Vehicle Width | 1980 mm | 1810 mm |
| Vehicle Height | 1390 mm | 1450 mm |
| Wheelbase Size | 2920 mm | 2990 mm |
